/WebsiteFiles/admin/bin/datagrid.class.php

<?php
################################################################################
##              -= YOU MAY NOT REMOVE OR CHANGE THIS NOTICE =-                 #
## --------------------------------------------------------------------------- #
##  PHP DataGrid version 4.2.8 (01.10.2008)                                    #
##  Author & developer:     Leumas Naypoka <leumas.a@gmail.com>                #
##  Developers:             Zewa           <http://www.softic.at>              #
##                          Fcallez        <http://www.innovavirtual.org>      #
##  Lisence:    GNU GPL                                                        #
##  Site:       http://phpbuilder.blogspot.com                                 #
##  Copyright:  Leumas Naypoka (c) 2006-2008. All rights reserved.             #
##                                                                             #
##  Additional modules (embedded):                                             #
##  -- openWYSIWYG 1.01 (free cross-browser)            http://openWebWare.com #
##  -- PEAR::DB 1.7.11 (PHP Ext. & Application Repository) http://pear.php.net #
##  -- JS AFV 1.0.3 (JS Auto From Validator)    http://phpbuilder.blogspot.com #
##  -- overLIB 4.21 (JS library)            http://www.bosrup.com/web/overlib/ #
##  -- FPDF v.1.53 (PDF files generator)                   http://www.fpdf.org #
##  -- JsCalendar v.1.0 (DHTML/JavaScript Calendar)     http://www.dynarch.com #
##  -- AutoSuggest v.2.1.3 (AJAX autocomplete) http://www.brandspankingnew.net #
##                                                                             # 
################################################################################
## +---------------------------------------------------------------------------+
## | 1. Creating & Calling:                                                    | 
## +---------------------------------------------------------------------------+
##  *** define a relative (virtual) path to datagrid.class.php file and "pear" 
##  *** directory (relatively to the current file)
##  *** RELATIVE PATH ONLY ***
//
//  define ("DATAGRID_DIR", "");                     /* Ex.: "datagrid/" */ 
//  define ("PEAR_DIR", "pear/");                    /* Ex.: "datagrid/pear/" */
//
//  require_once(DATAGRID_DIR.'datagrid.class.php');
//  require_once(PEAR_DIR.'PEAR.php');
//  require_once(PEAR_DIR.'DB.php');
##
##  *** creating variables that we need for database connection 
//  $DB_USER='name';            /* usually like this: prefix_name             */
//  $DB_PASS='';                /* must be already enscrypted (recommended)   */
//  $DB_HOST='localhost';       /* usually localhost                          */
//  $DB_NAME='dbName';          /* usually like this: prefix_dbName           */
//
//  ob_start();
##  *** (example of ODBC connection string)
##  *** $result_conn = $db_conn->connect(DB::parseDSN('odbc://root:12345@test_db'));
##  *** (example of Oracle connection string)
##  *** $result_conn = $db_conn->connect(DB::parseDSN('oci8://root:12345@localhost:1521/mydatabase)); 
##  *** (example of PostgreSQL connection string)
##  *** $result_conn = $db_conn->connect(DB::parseDSN('pgsql://root:12345@localhost/mydatabase)); 
##  === (Examples of connections to other db types see in "docs/pear/" folder)
//  $db_conn = DB::factory('mysql');  /* don't forget to change on appropriate db type */
//  $result_conn = $db_conn->connect(DB::parseDSN('mysql://'.$DB_USER.':'.$DB_PASS.'@'.$DB_HOST.'/'.$DB_NAME));
//  if(DB::isError($result_conn)){ die($result_conn->getDebugInfo()); }  
##  *** put a primary key on the first place 
//  $sql = "SELECT primary_key, field_1, field_2 ... FROM tableName ;";
##  *** set needed options and create a new class instance 
//  $debug_mode = false;        /* display SQL statements while processing */    
//  $messaging = true;          /* display system messages on a screen */ 
//  $unique_prefix = "abc_";    /* prevent overlays - must be started with a letter */
//  $dgrid = new DataGrid($debug_mode, $messaging, $unique_prefix, DATAGRID_DIR);
##  *** set encoding and collation (default: utf8/utf8_unicode_ci)
/// $dg_encoding = "utf8";
/// $dg_collation = "utf8_unicode_ci";
/// $dgrid->SetEncoding($dg_encoding, $dg_collation);
##  *** set data source with needed options
//  $default_order_field = "field_name_1 [, field_name_2...]";
//  $default_order_type = "ASC|DESC [, ASC|DESC...]";
//  $dgrid->DataSource($db_conn, $sql, $default_order_field, $default_order_type);	    
##
##
## +---------------------------------------------------------------------------+
## | 2. General Settings:                                                      | 
## +---------------------------------------------------------------------------+
##  *** set interface language (default - English)
##  *** (en) - English     (de) - German     (se) - Swedish   (hr) - Bosnian/Croatian
##  *** (hu) - Hungarian   (es) - Espanol    (ca) - Catala    (fr) - Francais
##  *** (nl) - Netherlands/"Vlaams"(Flemish) (it) - Italiano  (pl) - Polish
##  *** (ch) - Chinese     (sr) - Serbian    (bg) - Bulgarian (pb) - Brazilian Portuguese
##  *** (ar) - Arabic      (tr) - Turkish    (cz) - Czech     (ro/ro_utf8) - Romanian
##  *** (gk) - Greek       (he) - Hebrew     (ru_utf8) - Russian
/// $dg_language = "en";  
/// $dgrid->SetInterfaceLang($dg_language);
##  *** set direction: "ltr" or "rtr" (default - "ltr")
/// $direction = "ltr";
/// $dgrid->SetDirection($direction);
##  *** set layouts: "0" - tabular(horizontal) - default, "1" - columnar(vertical), "2" - customized 
/// $layouts = array("view"=>"0", "edit"=>"1", "details"=>"1", "filter"=>"1"); 
/// $dgrid->SetLayouts($layouts);
/// $details_template = "<table><tr><td>{field_name_1}</td><td>{field_name_2}</td></tr>...</table>";
/// $dgrid->SetTemplates("","",$details_template);
##  *** set modes for operations ("type" => "link|button|image") 
##  *** "byFieldValue"=>"fieldName" - make the field to be a link to edit mode page
/// $modes = array(
///     "add"	  =>array("view"=>true, "edit"=>false, "type"=>"link", "show_add_button"=>"inside|outside"),
///     "edit"	  =>array("view"=>true, "edit"=>true,  "type"=>"link", "byFieldValue"=>""),
///     "cancel"  =>array("view"=>true, "edit"=>true,  "type"=>"link"),
///     "details" =>array("view"=>true, "edit"=>false, "type"=>"link"),
///     "delete"  =>array("view"=>true, "edit"=>true,  "type"=>"image")
/// );
/// $dgrid->SetModes($modes);
##  *** allow scrolling on datagrid
/// $scrolling_option = false;
/// $dgrid->AllowScrollingSettings($scrolling_option);  
##  *** set scrolling settings (optional)
/// $scrolling_width = "90%";
/// $scrolling_height = "100%";
/// $dgrid->setScrollingSettings($scrolling_width, $scrolling_height);
##  *** allow multirow operations
//  $multirow_option = true;
//  $dgrid->AllowMultirowOperations($multirow_option);
/// $multirow_operations = array(
///     "delete"  => array("view"=>true),
///     "details" => array("view"=>true),
///     "my_operation_name" => array("view"=>true, "flag_name"=>"my_flag_name", "flag_value"=>"my_flag_value", "tooltip"=>"Do something with selected", "image"=>"image.gif")
/// );
/// $dgrid->SetMultirowOperations($multirow_operations);  
##  *** set CSS class for datagrid
##  *** "default" or "blue" or "gray" or "green" or "pink" or your own css file 
/// $css_class = "default";
/// $dgrid->SetCssClass($css_class);
##  *** set variables that used to get access to the page (like: my_page.php?act=34&id=56 etc.) 
/// $http_get_vars = array("act", "id");
/// $dgrid->SetHttpGetVars($http_get_vars);
##  *** set other datagrid/s unique prefixes (if you use few datagrids on one page)
##  *** format (in which mode to allow processing of another datagrids)
##  *** array("unique_prefix"=>array("view"=>true|false, "edit"=>true|false, "details"=>true|false));
/// $anotherDatagrids = array("abcd_"=>array("view"=>true, "edit"=>true, "details"=>true));
/// $dgrid->SetAnotherDatagrids($anotherDatagrids);  
##  *** set DataGrid caption
/// $dg_caption = "My Favorite Lovely PHP DataGrid";
/// $dgrid->SetCaption($dg_caption);
##
##
## +---------------------------------------------------------------------------+
## | 3. Printing & Exporting Settings:                                         | 
## +---------------------------------------------------------------------------+
##  *** set printing option: true(default) or false 
/// $printing_option = true;
/// $dgrid->AllowPrinting($printing_option);
##  *** set exporting option: true(default) or false and relative (virtual) path
##  *** to export directory (relatively to datagrid.class.php file).
##  *** Ex.: "" - if we use current datagrid folder
/// $exporting_option = true;
/// $exporting_directory = "";               
/// $dgrid->AllowExporting($exporting_option, $exporting_directory);
/// $exporting_types = array("excel"=>"true", "pdf"=>"true", "xml"=>"true");
/// $dgrid->AllowExportingTypes($exporting_types);
##
##
## +---------------------------------------------------------------------------+
## | 4. Sorting & Paging Settings:                                             | 
## +---------------------------------------------------------------------------+
##  *** set sorting option: true(default) or false 
/// $sorting_option = true;
/// $dgrid->AllowSorting($sorting_option);               
##  *** set paging option: true(default) or false 
/// $paging_option = true;
/// $rows_numeration = false;
/// $numeration_sign = "N #";
/// $dgrid->AllowPaging($paging_option, $rows_numeration, $numeration_sign);
##  *** set paging settings
/// $bottom_paging = array("results"=>true, "results_align"=>"left", "pages"=>true, "pages_align"=>"center", "page_size"=>true, "page_size_align"=>"right");
/// $top_paging = array("results"=>true, "results_align"=>"left", "pages"=>true, "pages_align"=>"center", "page_size"=>true, "page_size_align"=>"right");
//  $pages_array = array("10"=>"10", "25"=>"25", "50"=>"50", "100"=>"100", "250"=>"250", "500"=>"500", "1000"=>"1000");
/// $default_page_size = 10;
/// $paging_arrows = array("first"=>"|&lt;&lt;", "previous"=>"&lt;&lt;", "next"=>"&gt;&gt;", "last"=>"&gt;&gt;|");
/// $dgrid->SetPagingSettings($bottom_paging, $top_paging, $pages_array, $default_page_size, $paging_arrows);
##
##
## +---------------------------------------------------------------------------+
## | 5. Filter Settings:                                                       | 
## +---------------------------------------------------------------------------+
##  *** set filtering option: true or false(default)
/// $filtering_option = true;
/// $show_search_type = true;
/// $dgrid->AllowFiltering($filtering_option, $show_search_type);
##  *** set aditional filtering settings
##  *** tips: use "," (comma) if you want to make search by some words, for ex.: hello, bye, hi
/// $fill_from_array = array("0"=>"No", "1"=>"Yes");  /* as "value"=>"option" */
/// $filtering_fields = array(
///     "Caption_1"=>array("type"=>"textbox", "table"=>"tableName_1", "field"=>"fieldName_1|,fieldName_2", "show_operator"=>"false", "default_operator"=>"=|<|>|like|%like|like%|%like%|not like", "case_sensitive"=>"false", "comparison_type"=>"string|numeric|binary", "width"=>"", "on_js_event"=>""),
///     "Caption_2"=>array("type"=>"textbox", "autocomplete"=>"false", "handler"=>"modules/autosuggest/test.php", "maxresults"=>"12", "shownoresults"=>"false", "table"=>"tableName_1", "field"=>"fieldName_1|,fieldName_2", "show_operator"=>"false", "default_operator"=>"=|<|>|like|%like|like%|%like%|not like", "case_sensitive"=>"false", "comparison_type"=>"string|numeric|binary", "width"=>"", "on_js_event"=>""),
///     "Caption_3"=>array("type"=>"dropdownlist", "order"=>"ASC|DESC", "table"=>"tableName_2", "field"=>"fieldName_2", "source"=>"self"|$fill_from_array, "show"=>"", "condition"=>"", "show_operator"=>"false", "default_operator"=>"=|<|>|like|%like|like%|%like%|not like", "case_sensitive"=>"false", "comparison_type"=>"string|numeric|binary", "width"=>"", "on_js_event"=>""),
///     "Caption_4"=>array("type"=>"calendar", "table"=>"tableName_3", "field"=>"fieldName_3", "show_operator"=>"false", "default_operator"=>"=|<|>|like|%like|like%|%like%|not like", "case_sensitive"=>"false", "comparison_type"=>"string|numeric|binary", "width"=>"", "on_js_event"=>""),
/// );
/// $dgrid->SetFieldsFiltering($filtering_fields);
##
## 
## +---------------------------------------------------------------------------+
## | 6. View Mode Settings:                                                    | 
## +---------------------------------------------------------------------------+
##  *** set view mode table properties
/// $vm_table_properties = array("width"=>"90%");
/// $dgrid->SetViewModeTableProperties($vm_table_properties);  
##  *** set columns in view mode
##  *** Ex.: "on_js_event"=>"onclick='alert(\"Yes!!!\");'"
##  ***      "barchart" : number format in SELECT SQL must be equal with number format in max_value
/// $fill_from_array = array("0"=>"Banned", "1"=>"Active", "2"=>"Closed", "3"=>"Removed"); /* as "value"=>"option" */
/// $vm_colimns = array(
///     "FieldName_1"=>array("header"=>"Name_A", "type"=>"label",      "align"=>"left", "width"=>"X%|Xpx", "wrap"=>"wrap|nowrap", "text_length"=>"-1", "tooltip"=>"false", "tooltip_type"=>"floating|simple", "case"=>"normal|upper|lower|camel", "summarize"=>"false", "sort_type"=>"string|numeric", "sort_by"=>"", "visible"=>"true", "on_js_event"=>""),
///     "FieldName_2"=>array("header"=>"Name_B", "type"=>"image",      "align"=>"left", "width"=>"X%|Xpx", "wrap"=>"wrap|nowrap", "text_length"=>"-1", "tooltip"=>"false", "tooltip_type"=>"floating|simple", "case"=>"normal|upper|lower|camel", "summarize"=>"false", "sort_type"=>"string|numeric", "sort_by"=>"", "visible"=>"true", "on_js_event"=>"", "target_path"=>"uploads/", "default"=>"default_image.ext", "image_width"=>"50px", "image_height"=>"30px", "magnify"=>"false"),
///     "FieldName_3"=>array("header"=>"Name_C", "type"=>"linktoview", "align"=>"left", "width"=>"X%|Xpx", "wrap"=>"wrap|nowrap", "text_length"=>"-1", "tooltip"=>"false", "tooltip_type"=>"floating|simple", "case"=>"normal|upper|lower|camel", "summarize"=>"false", "sort_type"=>"string|numeric", "sort_by"=>"", "visible"=>"true", "on_js_event"=>""),
///     "FieldName_4"=>array("header"=>"Name_D", "type"=>"linktoedit", "align"=>"left", "width"=>"X%|Xpx", "wrap"=>"wrap|nowrap", "text_length"=>"-1", "tooltip"=>"false", "tooltip_type"=>"floating|simple", "case"=>"normal|upper|lower|camel", "summarize"=>"false", "sort_type"=>"string|numeric", "sort_by"=>"", "visible"=>"true", "on_js_event"=>""),
///     "FieldName_5"=>array("header"=>"Name_E", "type"=>"linktodelete", "align"=>"left", "width"=>"X%|Xpx", "wrap"=>"wrap|nowrap", "text_length"=>"-1", "tooltip"=>"false", "tooltip_type"=>"floating|simple", "case"=>"normal|upper|lower|camel", "summarize"=>"false", "sort_type"=>"string|numeric", "sort_by"=>"", "visible"=>"true", "on_js_event"=>""),
///     "FieldName_6"=>array("header"=>"Name_F", "type"=>"link",       "align"=>"left", "width"=>"X%|Xpx", "wrap"=>"wrap|nowrap", "text_length"=>"-1", "tooltip"=>"false", "tooltip_type"=>"floating|simple", "case"=>"normal|upper|lower|camel", "summarize"=>"false", "sort_type"=>"string|numeric", "sort_by"=>"", "visible"=>"true", "on_js_event"=>"", "field_key"=>"field_name_0"|"field_key_1"=>"field_name_1"|..., "field_data"=>"field_name_2", "rel"=>"", "title"=>"", "target"=>"_new", "href"=>"{0}"),
///     "FieldName_7"=>array("header"=>"Name_G", "type"=>"link",       "align"=>"left", "width"=>"X%|Xpx", "wrap"=>"wrap|nowrap", "text_length"=>"-1", "tooltip"=>"false", "tooltip_type"=>"floating|simple", "case"=>"normal|upper|lower|camel", "summarize"=>"false", "sort_type"=>"string|numeric", "sort_by"=>"", "visible"=>"true", "on_js_event"=>"", "field_key"=>"field_name_0"|"field_key_1"=>"field_name_1"|..., "field_data"=>"field_name_2", "rel"=>"", "title"=>"", "target"=>"_new", "href"=>"mailto:{0}"),
///     "FieldName_8"=>array("header"=>"Name_H", "type"=>"link",       "align"=>"left", "width"=>"X%|Xpx", "wrap"=>"wrap|nowrap", "text_length"=>"-1", "tooltip"=>"false", "tooltip_type"=>"floating|simple", "case"=>"normal|upper|lower|camel", "summarize"=>"false", "sort_type"=>"string|numeric", "sort_by"=>"", "visible"=>"true", "on_js_event"=>"", "field_key"=>"field_name_0"|"field_key_1"=>"field_name_1"|..., "field_data"=>"field_name_2", "rel"=>"", "title"=>"", "target"=>"_new", "href"=>"http://mydomain.com?act={0}&act={1}&code=ABC"),
///     "FieldName_9"=>array("header"=>"Name_I", "type"=>"money",      "align"=>"left", "width"=>"X%|Xpx", "wrap"=>"wrap|nowrap", "text_length"=>"-1", "tooltip"=>"false", "tooltip_type"=>"floating|simple", "case"=>"normal|upper|lower|camel", "summarize"=>"false", "sort_type"=>"string|numeric", "sort_by"=>"", "visible"=>"true", "on_js_event"=>"", "sign"=>"$", "decimal_places"=>"2", "dec_separator"=>".", "thousands_separator"=>","),
///     "FieldName_10"=>array("header"=>"Name_J", "type"=>"password",   "align"=>"left", "width"=>"X%|Xpx", "wrap"=>"wrap|nowrap", "text_length"=>"-1", "tooltip"=>"false", "tooltip_type"=>"floating|simple", "case"=>"normal|upper|lower|camel", "summarize"=>"false", "sort_type"=>"string|numeric", "sort_by"=>"", "visible"=>"true", "on_js_event"=>""),
///     "FieldName_11"=>array("header"=>"Name_K", "type"=>"barchart",   "align"=>"left", "width"=>"X%|Xpx", "wrap"=>"wrap|nowrap", "text_length"=>"-1", "tooltip"=>"false", "tooltip_type"=>"floating|simple", "case"=>"normal|upper|lower|camel", "summarize"=>"false", "sort_type"=>"string|numeric", "sort_by"=>"", "visible"=>"true", "on_js_event"=>"", "field"=>"field_name", "maximum_value"=>"value"),
///     "FieldName_12"=>array("header"=>"Name_L", "type"=>"enum",      "align"=>"left", "width"=>"X%|Xpx", "wrap"=>"wrap|nowrap", "text_length"=>"-1", "tooltip"=>"false", "tooltip_type"=>"floating|simple", "case"=>"normal|upper|lower|camel", "summarize"=>"false", "sort_type"=>"string|numeric", "sort_by"=>"", "visible"=>"true", "on_js_event"=>"", "source"=>$fill_from_array),
/// );
/// $dgrid->SetColumnsInViewMode($vm_colimns);
##  *** set auto-genereted columns in view mode
//  $auto_column_in_view_mode = false;
//  $dgrid->SetAutoColumnsInViewMode($auto_column_in_view_mode);
##
##
## +---------------------------------------------------------------------------+
## | 7. Add/Edit/Details Mode Settings:                                        | 
## +---------------------------------------------------------------------------+
##  *** set add/edit mode table properties
/// $em_table_properties = array("width"=>"70%");
/// $dgrid->SetEditModeTableProperties($em_table_properties);
##  *** set details mode table properties
/// $dm_table_properties = array("width"=>"70%");
/// $dgrid->SetDetailsModeTableProperties($dm_table_properties);
##  ***  set settings for add/edit/details modes
//  $table_name  = "table_name";
//  $primary_key = "primary_key";
//  $condition   = "table_name.field = ".$_REQUEST['abc_rid'];
//  $dgrid->SetTableEdit($table_name, $primary_key, $condition);
##  *** set columns in edit mode   
##  *** first letter:  r - required, s - simple (not required)
##  *** second letter: t - text(including datetime), n - numeric, a - alphanumeric,
##                     e - email, f - float, y - any, l - login name, z - zipcode,
##                     p - password, i - integer, v - verified, c - checkbox, u - URL
##  *** third letter (optional): 
##          for numbers: s - signed, u - unsigned, p - positive, n - negative
##          for strings: u - upper,  l - lower,    n - normal,   y - any
##  *** Ex.: "on_js_event"=>"onclick='alert(\"Yes!!!\");'"
##  *** Ex.: type = textbox|textarea|label|date(yyyy-mm-dd)|datedmy(dd-mm-yyyy)|datetime(yyyy-mm-dd hh:mm:ss)|datetimedmy(dd-mm-yyyy hh:mm:ss)|time(hh:mm:ss)|image|password|enum|print|checkbox
##  *** make sure your WYSIWYG dir has 777 permissions
/// $fill_from_array = array("0"=>"No", "1"=>"Yes", "2"=>"Don't know", "3"=>"My be"); /* as "value"=>"option" */
/// $em_columns = array(
///     "FieldName_1"  =>array("header"=>"Name_A", "type"=>"textbox",    "req_type"=>"rt", "width"=>"210px", "title"=>"", "readonly"=>"false", "maxlength"=>"-1", "default"=>"", "unique"=>"false", "unique_condition"=>"", "visible"=>"true", "on_js_event"=>""),
///     "FieldName_2"  =>array("header"=>"Name_B", "type"=>"textarea",   "req_type"=>"rt", "width"=>"210px", "title"=>"", "readonly"=>"false", "maxlength"=>"-1", "default"=>"", "unique"=>"false", "unique_condition"=>"", "visible"=>"true", "on_js_event"=>"", "edit_type"=>"simple|wysiwyg", "resizable"=>"false", "rows"=>"7", "cols"=>"50"),
///     "FieldName_3"  =>array("header"=>"Name_C", "type"=>"label",      "req_type"=>"rt", "width"=>"210px", "title"=>"", "readonly"=>"false", "maxlength"=>"-1", "default"=>"", "unique"=>"false", "unique_condition"=>"", "visible"=>"true", "on_js_event"=>""),
///     "FieldName_4"  =>array("header"=>"Name_D", "type"=>"date",       "req_type"=>"rt", "width"=>"187px", "title"=>"", "readonly"=>"false", "maxlength"=>"-1", "default"=>"", "unique"=>"false", "unique_condition"=>"", "visible"=>"true", "on_js_event"=>"", "calendar_type"=>"popup|floating"),
///     "FieldName_5"  =>array("header"=>"Name_E", "type"=>"datetime",   "req_type"=>"st", "width"=>"187px", "title"=>"", "readonly"=>"false", "maxlength"=>"-1", "default"=>"", "unique"=>"false", "unique_condition"=>"", "visible"=>"true", "on_js_event"=>"", "calendar_type"=>"popup|floating"),
///     "FieldName_6"  =>array("header"=>"Name_F", "type"=>"time",       "req_type"=>"st", "width"=>"210px", "title"=>"", "readonly"=>"false", "maxlength"=>"-1", "default"=>"", "unique"=>"false", "unique_condition"=>"", "visible"=>"true", "on_js_event"=>""),
///     "FieldName_7"  =>array("header"=>"Name_G", "type"=>"image",      "req_type"=>"st", "width"=>"220px", "title"=>"", "readonly"=>"false", "maxlength"=>"-1", "default"=>"", "unique"=>"false", "unique_condition"=>"", "visible"=>"true", "on_js_event"=>"", "target_path"=>"uploads/", "max_file_size"=>"100000|100K|10M|1G", "image_width"=>"120px", "image_height"=>"90px", "magnify"=>"false", "file_name"=>"", "host"=>"local|remote"),
///     "FieldName_8"  =>array("header"=>"Name_H", "type"=>"password",   "req_type"=>"rp", "width"=>"210px", "title"=>"", "readonly"=>"false", "maxlength"=>"-1", "default"=>"", "unique"=>"false", "unique_condition"=>"", "visible"=>"true", "on_js_event"=>""),
///     "FieldName_9"  =>array("header"=>"Name_I", "type"=>"enum",       "req_type"=>"st", "width"=>"210px", "title"=>"", "readonly"=>"false", "maxlength"=>"-1", "default"=>"", "unique"=>"false", "unique_condition"=>"", "visible"=>"true", "on_js_event"=>"", "source"=>"self"|$fill_from_array, "view_type"=>"dropdownlist(default)|radiobutton", "radiobuttons_alignment"=>"horizontal|vertical", "multiple"=>"false", "multiple_size"=>"4"),
///     "FieldName_10" =>array("header"=>"Name_J", "type"=>"print",      "req_type"=>"st", "width"=>"210px", "title"=>"", "readonly"=>"false", "maxlength"=>"-1", "default"=>"", "unique"=>"false", "unique_condition"=>"", "visible"=>"true", "on_js_event"=>""),
///     "FieldName_11" =>array("header"=>"Name_K", "type"=>"checkbox",   "req_type"=>"st", "width"=>"210px", "title"=>"", "readonly"=>"false", "maxlength"=>"-1", "default"=>"", "unique"=>"false", "unique_condition"=>"", "visible"=>"true", "on_js_event"=>"", "true_value"=>1, "false_value"=>0),
///     "FieldName_12" =>array("header"=>"Name_L", "type"=>"file",       "req_type"=>"st", "width"=>"210px", "title"=>"", "readonly"=>"false", "maxlength"=>"-1", "default"=>"", "unique"=>"false", "unique_condition"=>"", "visible"=>"true", "on_js_event"=>"", "target_path"=>"uploads/", "max_file_size"=>"100000|100K|10M|1G", "file_name"=>"File_Name", "host"=>"local|remote"),
///     "FieldName_13" =>array("header"=>"Name_M", "type"=>"link",       "req_type"=>"st", "width"=>"210px", "title"=>"", "readonly"=>"false", "maxlength"=>"-1", "default"=>"", "unique"=>"false", "unique_condition"=>"", "visible"=>"true", "on_js_event"=>"", "field_key"=>"field_name_0"|"field_key_1"=>"field_name_1"|..., "field_data"=>"field_name_2", "target"=>"_new", "href"=>"http://mydomain.com?act={0}&act={1}&code=ABC"),
///     "FieldName_14" =>array("header"=>"Name_N", "type"=>"foreign_key","req_type"=>"ri", "width"=>"210px", "title"=>"", "readonly"=>"false", "default"=>"", "unique"=>"false", "unique_condition"=>"", "visible"=>"true"),
///     "FieldName_15" =>array("header"=>"",       "type"=>"hidden",     "req_type"=>"st", "default"=>"default_value", "visible"=>"true", "unique"=>"false"),
///     "validator"    =>array("header"=>"Name_O", "type"=>"validator",  "req_type"=>"rv", "width"=>"210px", "title"=>"", "readonly"=>"false", "maxlength"=>"-1", "default"=>"", "visible"=>"true", "on_js_event"=>"", "for_field"=>"", "validation_type"=>"password|email"),
///     "delimiter"    =>array("inner_html"=>"<br>"),
/// );
/// $dgrid->SetColumnsInEditMode($em_columns);
##  *** set auto-genereted columns in edit mode
//  $auto_column_in_edit_mode = false;
//  $dgrid->SetAutoColumnsInEditMode($auto_column_in_edit_mode);
##  *** set foreign keys for add/edit/details modes (if there are linked tables)
##  *** Ex.: "field_name"=>"CONCAT(field1,','field2) as field3" 
##  *** Ex.: "condition"=>"TableName_1.FieldName > 'a' AND TableName_1.FieldName < 'c'"
##  *** Ex.: "on_js_event"=>"onclick='alert(\"Yes!!!\");'"
/// $foreign_keys = array(
///     "ForeignKey_1"=>array("table"=>"TableName_1", "field_key"=>"FieldKey_1", "field_name"=>"FieldName_1", "view_type"=>"dropdownlist(default)|radiobutton|textbox", "radiobuttons_alignment"=>"horizontal|vertical", "condition"=>"", "order_by_field"=>"", "order_type"=>"ASC|DESC", "on_js_event"=>""),
///     "ForeignKey_2"=>array("table"=>"TableName_2", "field_key"=>"FieldKey_2", "field_name"=>"FieldName_2", "view_type"=>"dropdownlist(default)|radiobutton|textbox", "radiobuttons_alignment"=>"horizontal|vertical", "condition"=>"", "order_by_field"=>"", "order_type"=>"ASC|DESC", "on_js_event"=>"")
/// ); 
/// $dgrid->SetForeignKeysEdit($foreign_keys);
##
##
## +---------------------------------------------------------------------------+
## | 8. Bind the DataGrid:                                                     | 
## +---------------------------------------------------------------------------+
##  *** bind the DataGrid and draw it on the screen
//  $dgrid->WriteCssClass();    /* call of this method between HTML <HEAD> elements */
//  $dgrid->Bind();        
//  ob_end_flush();
##
################################################################################   

////////////////////////////////////////////////////////////////////////////////
//
// Not documented:
// -----------------------------------------------------------------------------
// Property : first_field_focus_allowed   = true|false;
//  --//--  : hide_grid_before_serach     = true|false;  /* put it before Bind() method */
//  --//--  : "pre_addition"              => "" and "post_addition"=>"" attributes in view mode for labels and in add/edit/details modes for textboxes, checkboxes
//  --//--  : "autocomplete"              => "on|off" attribute for textboxes in add/edit modes (default - "on")
//  --//--  : mode_after_update           = ""|"edit";
//  --//--  : "on_item_created"           => "function_name" attributes in view/add/edit/details modes for customized work with field value.
//                                          This function must be defined with 1 parameter, that will get fild's data.
//                                          Ex.: function function_name($field_value){ ... return $new_field_value;}
//  --//--  : NoDataFoundText             = ""; displays a text on empty dataset
//
// Method   : ExecuteSQL() 
//            use it after DataSource() method only (after the using DataSource() need to be recalled)
//    		  $dSet = $dgrid->ExecuteSQL("SELECT * FROM tblPresidents WHERE tblPresidents.CountryID = ".$_GET['f_rid']."");
//    		  while($row = $dSet->fetchRow()){
//        	    for($c = 0; ($c < $dSet->numCols()); $c++){ echo $row[$c]." "; }
//        	    echo "<br>";
//    		  }
//  --//--  : SelectSqlItem()
//            $presidents = $dgrid->SelectSqlItem("SELECT COUNT(tblPresidents.presidentID) FROM tblPresidents WHERE tblPresidents.CountryID = ".$_GET['f_rid']."");
//  --//--  : AllowHighlighting(true|false);
//  --//--  : SetJsErrorsDisplayStyle("all"|"each");
//  --//--  : GetNextId();
//  --//--  : GetCurrentId();
//  --//--  : SetHeadersInColumnarLayout("Field Name", "Field Value");
//  --//--  : SetDgMessages("add", "update", "delete");
//
// Feature  : onSubmitMyCheck
//      	<script type='text/javascript'>
//            function unique_prefix_onSubmitMyCheck(){
//              return true;
//      	}	
//      	</script>
//  --//--  : "on_js_event"=>"onchange='formAction(\"\", \"\", \"".$dgrid->uniquePrefix."\", \"".$dgrid->HTTP_URL."\", \"".$_SERVER['QUERY_STRING']."\")'" 
//  --//--  : Bind(true|false) - draw DataGrid on the screen on not
//      
////////////////////////////////////////////////////////////////////////////////

////////////////////////////////////////////////////////////////////////////////
//
// Tricks:
// -----------------------------------------------------------------------------
// 1. Set default value, that disappears on focus:
//      "default"=>"http://www.website.com", "on_js_event"=>"onBlur='if(this.value == \"\") this.value = \"http://www.website.com\"; this.style.color=\"#f68d6f\";' onClick='if(this.value==\"http://www.website.com\") this.value=\"\"; this.style.color=\"#000000\";'",
//
// 2. Set uniquie value for uploading image:
//     a) "file_name"=>"img_".((isset($_GET['prfx_mode']) && ($_GET['prfx_mode'] == "add")) ? $dgrid->GetNextId() : $dgrid->GetCurrentId())
//     b) "file_name"=>"img_".((isset($_GET['prfx_mode']) && ($_GET['prfx_mode'] == "add")) ? $dgrid->GetRandomString("10") : $dgrid->GetCurrentId())
//
// 3. Make auto-submition for filtering fileds:
//      "on_js_event"=>"onchange='document.getElementById(\"...prefix..._ff_onSUBMIT_FILTER\").click();'"
//
// 4. Make a field text colored according to condition (in SQL statement):
//      if (product='flooring', CONCAT('<SPAN style=\"background-color:yellow\">',product,'</SPAN>'),product) as ProductColored,
//
// 5. Change the field's data on fly (for "on_item_created" field's attribute):
//      function setColor($field_value){
//        if(strlen($field_value) > 5){
//            return "<font color='red'>".$field_value."</font>";
//        }else{
//            return "<font color='blue'>".$field_value."</font>";        
//        }
//      }
//
// 6. Change the field's type on fly (for "on_item_created" field's attribute):
//      function setColor($field_value, $field_property_type){
//        if(strlen($field_value) > 5){
//            return "<font color='red'>".$field_value."</font>";
//        }else{
//            $field_property_type = "linktoview";
//            return "<font color='blue'>".$field_value."</font>";        
//        }
//      }
//
// 8. Customized filtering: write filter field with empty table name and field: (..."table"=>"", "field"=>"xxx",...)
//    Then use $my_field = isset($_GET['prefix__ff__xxx']) ? $_GET['prefix__ff__xxx'] : "";
//    Use $my_field in SQL SELECT for your own filtering
//
////////////////////////////////////////////////////////////////////////////////


Class DataGrid
{
    //==========================================================================
    // Data Members
    //==========================================================================
    // unique prefixes ---------------------------------------------------------
    public $uniquePrefix;
    public $unique_random_prefix;

    // directory ---------------------------------------------------------------
    public $directory;

    // language ----------------------------------------------------------------
    public $lang_name;
    public $lang;

    // caption -----------------------------------------------------------------
    public $caption;

    // rows and columns data members -------------------------------------------
    public $rows;
    public $row_lower;
    public $row_upper;
    public $columns;            
    public $col_lower;
    public $col_upper;

    // http get vars -----------------------------------------------------------    
    public $http;
    public $port;
    public $server_name;
    public $HTTP_URL;
    public $http_get_vars;
    public $another_datagrids;

    // data source -------------------------------------------------------------
    public $db_handler;
    public $sql;
    public $sql_view;
    public $sql_group_by;
    public $data_set;
    
    // signs -------------------------------------------------------------------
    public $amp;
    public $nbsp;
    
    // encoding & direction ----------------------------------------------------
    public $encoding;
    public $collation;
    public $direction;

    // layout style ------------------------------------------------------------
    public $layouts;  
    public $layout_type;

    // templates ---------------------------------------------------------------
    public $templates;
    
    // paging variables --------------------------------------------------------
    public $pages_total;
    public $page_current;
    public $default_page_size;
    public $req_page_size;
    public $paging_allowed;
    public $rows_numeration;
    public $numeration_sign;           
    public $lower_paging;
    public $upper_paging;
    public $pages_array;
    public $first_arrow;
    public $previous_arrow;
    public $next_arrow;
    public $last_arrow;    
    public $limit_start;
    public $limit_size;
    public $rows_total;

    // sorting variables -------------------------------------------------------
    public $sort_field;
    public $sort_type;
    public $default_sort_field;    
    public $default_sort_type;    
    public $sorting_allowed;
    public $sql_sort;

    // filtering variables -----------------------------------------------------
    public $filtering_allowed;
    public $show_search_type;
    public $filter_fields;
    public $hide_display;

    // columns style parameters ------------------------------------------------            
    public $wrap;

    // css style ---------------------------------------------------------------            
    public $row_highlighting_allowed;
    public $css_class;
    public $rowColor;
    protected $is_css_class_written;

    // table style parameters --------------------------------------------------                        
    public $tblAlign;
    public $tblWidth;
    public $tblBorder;
    public $tblBorderColor;
    public $tblCellSpacing;
    public $tblCellPadding;
    
    // datagrid modes ----------------------------------------------------------                        
    public $modes;
    public $mode_after_update;
    public $mode;
    protected $rid;
    public $rids;
    public $tbl_name;
    public $primary_key;
    public $condition;
    public $foreign_keys_array;    
    public $columns_view_mode;
    public $columns_edit_mode;
    public $sorted_columns;

    // printing & exporting ----------------------------------------------------                        
    public $printing_allowed;
    public $exporting_allowed;
    public $exporting_directory;
    protected $exporting_types;

    // debug mode --------------------------------------------------------------                        
    public $debug;
    public $start_time;
    public $end_time;

    // message -----------------------------------------------------------------                        
    public $act_msg;
    public $messaging;
    public $is_error;
    public $errors;
    public $is_warning;
    public $warnings;
    public $dg_messages;
    public $NoDataFoundText;

    // browser & system types --------------------------------------------------
    public $platform;
    public $browser_name;
    public $browser_version;
    
    // scrolling ---------------------------------------------------------------
    public $scrolling_option;
    public $scrolling_width;
    public $scrolling_height;

    // header names ------------------------------------------------------------
    public $field_header;
    public $field_value_header;

    // hide --------------------------------------------------------------------
    public $hide_grid_before_serach;

    // summarize ---------------------------------------------------------------
    public $summarize_columns;
    
    // multirow ----------------------------------------------------------------
    public $multirow_allowed;
    public $multi_rows;
    public $multirow_operations_array;

    // first field focus -------------------------------------------------------
    public $first_field_focus_allowed;

    // javascript errors display style -----------------------------------------
    public $js_validation_errors;
    
    //==========================================================================
    // PUBLIC MEMBER FUNCTIONS 
    //==========================================================================
    //--------------------------------------------------------------------------
    // Default class constructor 
    //--------------------------------------------------------------------------
    function __construct($debug_mode = false, $messaging = true, $unique_prefix = "", $datagrid_dir = "datagrid/"){        

        $this->debug = (($debug_mode == true) || ($debug_mode == "true")) ? true : false ;
        
        // start calculating running time of a script
        $this->start_time = 0;
        $this->end_time = 0;
        if($this->debug){
            $this->start_time = $this->GetFormattedMicrotime();
        }        

        // unique prefixes -----------------------------------------------------
        $this->SetUniquePrefix($unique_prefix);
        
        // directory -----------------------------------------------------------
        $this->directory = $datagrid_dir;

        // language ------------------------------------------------------------
        $this->lang_name = "en";
        $this->lang = array();
        $this->lang['total'] = "Total";
        $this->lang['wrong_parameter_error'] = "Wrong parameter in [<b>_FIELD_</b>]: _VALUE_";        

        // caption -------------------------------------------------------------        
        $this->caption = "";

        // rows and columns data members ---------------------------------------
        $this->http = $this->GetProtocol();
        $this->port = $this->GetPort();
        $this->server_name = $this->GetServerName();
        $this->HTTP_URL = str_replace("///", "//", $this->http.$this->server_name.$this->port.$_SERVER['PHP_SELF']);

        // http get vars -------------------------------------------------------        
        $this->http_get_vars = "";
        $this->another_datagrids = "";

        // css style  ----------------------------------------------------------        
        $this->row_highlighting_allowed = true;
        $this->css_class = "default";
        $this->rowColor = array();
        $this->is_css_class_written = false;

        // signs ---------------------------------------------------------------
        $this->amp = "&amp;";        
        $this->nbsp = ""; //&nbsp;       
        
        $this->rows = 0;
        $this->row_lower = 0;
        $this->row_upper = 0;
        $this->columns = 0;            
        $this->col_lower = 0;
        $this->col_upper = 0;

        // encoding & direction ------------------------------------------------
        $this->encoding = "utf8";
        $this->collation = "utf8_unicode_ci";
        $this->direction = "ltr";
        
        $this->layouts['view']   = "0";
        $this->layouts['edit']   = "1";
        $this->layouts['filter'] = "1";
        $this->layouts['show']   = "1";
        $this->layout_type = "view";
        
        // templates -----------------------------------------------------------
        $this->templates['view'] = "";
        $this->templates['edit'] = "";
        $this->templates['show'] = "";
        
        $this->pages_total = 0;
        $this->page_current = 0;
        $this->pages_array = array("10"=>"10", "25"=>"25", "50"=>"50", "100"=>"100", "250"=>"250", "500"=>"500", "1000"=>"1000");
        $this->first_arrow    = "|&lt;&lt;";
        $this->previous_arrow = "&lt;&lt;";
        $this->next_arrow     = "&gt;&gt;";
        $this->last_arrow     = "&gt;&gt;|";
        $this->default_page_size = 10;
        $this->req_page_size = 10;                
        $this->paging_allowed = true;
        $this->rows_numeration = false;
        $this->numeration_sign = "N #";       
        $this->lower_paging['results'] = false;
        $this->lower_paging['results_align'] = "left";
        $this->lower_paging['pages'] = false;        
        $this->lower_paging['pages_align'] = "center";
        $this->lower_paging['page_size'] = false;
        $this->lower_paging['page_size_align'] = "right";
        $this->upper_paging['results'] = false;
        $this->upper_paging['results_align'] = "left";
        $this->upper_paging['pages'] = false;        
        $this->upper_paging['pages_align'] = "center";
        $this->upper_paging['page_size'] = false;
        $this->upper_paging['page_size_align'] = "right";
        $this->limit_start = 0;
        $this->limit_size = $this->req_page_size;
        $this->rows_total = 0;
        
        $this->sort_field = "";
        $this->sort_field_by = "";
        $this->sort_field_type = "";
        $this->sort_type = "";
        $this->default_sort_field = array();
        $this->default_sort_type = array();
        $this->sorting_allowed = true;
        $this->sql_view = "";
        $this->sql_group_by = "";
        $this->sql = "";
        $this->sql_sort = "";
        
        $this->filtering_allowed = false;
        $this->show_search_type = true;        
        $this->filter_fields = array();
        $this->hide_display = "";
        
        $this->tblAlign['view'] = "center";         $this->tblAlign['edit'] = "center";         $this->tblAlign['details'] = "center";
        $this->tblWidth['view'] = "90%";            $this->tblWidth['edit'] = "70%";            $this->tblWidth['details'] = "60%";
        $this->tblBorder['view'] = "1";             $this->tblBorder['edit'] = "1";             $this->tblBorder['details'] = "1";
        $this->tblBorderColor['view'] = "#000000";  $this->tblBorderColor['edit'] = "#000000";  $this->tblBorderColor['details'] = "#000000";
        $this->tblCellSpacing['view'] = "0";        $this->tblCellSpacing['edit'] = "0";        $this->tblCellSpacing['details'] = "0";
        $this->tblCellPadding['view'] = "0";        $this->tblCellPadding['edit'] = "0";        $this->tblCellPadding['details'] = "0";
        
        // datagrid modes ------------------------------------------------------
        $this->modes["add"]     = array("view"=>true, "edit"=>false, "type"=>"link", "show_add_button"=>"inside");
        $this->modes["edit"]    = array("view"=>true, "edit"=>true,  "type"=>"link", "byFieldValue"=>"");
        $this->modes["cancel"]  = array("view"=>true, "edit"=>true,  "type"=>"link");
        $this->modes["details"] = array("view"=>true, "edit"=>false, "type"=>"link");
        $this->modes["delete"]  = array("view"=>true, "edit"=>true,  "type"=>"image");            

        $this->mode = "view";
        $this->mode_after_update = "";
        $this->rid = "";
        $this->rids = "";
        $this->tbl_name ="";
        $this->primary_key = 0;
        $this->condition = "";

        $this->foreign_keys_array = array();
        
        $this->columns_view_mode = array();
        $this->columns_edit_mode = array();
        $this->sorted_columns = array();
              
        $this->printing_allowed = true;
        $this->exporting_allowed = false;
        $this->exporting_directory = "";
        $this->exporting_types = array("excel"=>"true", "pdf"=>"true", "xml"=>"true");
        
        $this->wrap = "wrap";

        // scrolling -----------------------------------------------------------
        $this->scrolling_option = false;
        $this->scrolling_width = "90%";
        $this->scrolling_height = "100%";

        // header names --------------------------------------------------------
        $this->field_header = "";
        $this->field_value_header = "";

        // hide ----------------------------------------------------------------
        $this->hide_grid_before_serach = false;
        
        $this->summarize_columns = array();
        
        $this->multirow_allowed = false;
        $this->multi_rows = 0;
        $this->multirow_operations_array = array();        
        $this->multirow_operations_array['delete'] = array("view"=>true);
        $this->multirow_operations_array['details'] = array("view"=>true);

        $this->first_field_focus_allowed = false;

        // message -------------------------------------------------------------
        $this->act_msg = "";

        if($this->debug) error_reporting(E_ERROR | E_WARNING | E_PARSE | E_NOTICE);
        $this->messaging = (($messaging == true) || ($messaging == "true")) ? true : false ;        
        $this->is_error = false;
        $this->errors = array();
        $this->is_warning = false;
        $this->warnings = array();
        $this->dg_messages = array();
        $this->dg_messages['add'] = "";
        $this->dg_messages['update'] = "";
        $this->dg_messages['delete'] = "";

        // javascript errors display style -------------------------------------
        $this->js_validation_errors = "true";

        // set browser definitions  
        $this->SetBrowserDefinitions();
    }

    //--------------------------------------------------------------------------
    // Class destructor
    //--------------------------------------------------------------------------    
    function __destruct()
    {
		// echo 'this object has been destroyed';
    }

    //--------------------------------------------------------------------------
    // Set encoding
    //--------------------------------------------------------------------------
    function SetEncoding($dg_encoding = "", $dg_collation = ""){
        $this->encoding = ($dg_encoding != "") ? $dg_encoding : $this->encoding;
        $this->collation = ($dg_collation != "") ? $dg_collation : $this->collation;
    }

    //--------------------------------------------------------------------------
    // Set data source 
    //--------------------------------------------------------------------------
    function DataSource($db_handl, $sql = "", $start_order = "", $start_order_type = ""){        
        // clear sql statment
        $sql = str_replace("\n", " ", $sql);    // new row
        $sql = str_replace("\t", " ", $sql);    // tabulation
        $sql = str_replace(chr(13), " ", $sql); // CR sign
        $sql = str_replace(chr(10), " ", $sql); // LF sign
        $sql = str_replace(";", "", $sql);       
        
        // get preliminary Primary Key
        $p_key = explode(" ", $sql);
        $p_key = str_replace(",", "", $p_key[1]);
        $p_key = explode(".", $p_key);
        $this->primary_key = $p_key[count($p_key)-1];
        
        $req_sort_field = $this->GetVariable('sort_field');
        $req_sort_field_by = $this->GetVariable('sort_field_by');
        $req_sort_field_type = $this->GetVariable('sort_field_type');
        $sort_field = ($req_sort_field_by != "") ? $req_sort_field_by : $req_sort_field ;
        $req_sort_type = $this->GetVariable('sort_type');
        $this->db_handler = $db_handl;       
        $this->db_handler->setFetchMode(DB_FETCHMODE_ORDERED);
        $numeric_sort = false;

        // handle SELECT SQL statement
        $this->sql_view = $sql;         
        if($this->LastSubStrOccurence($this->sql_view, "from ") < $this->LastSubStrOccurence($this->sql_view, "where ")){
            // handle SELECT statment with sub-SELECTs and SELECT without WHERE
            $ind = strpos(strtolower($this->sql_view), "group by");
            if($ind){
                $prefix = substr($sql, 0, $ind); 
                $suffix = substr($sql, $ind);                 
                $this->sql_view = $prefix." ";
                $this->sql_group_by = $suffix;                
            }else{
                $this->sql_view .= " WHERE 1=1 ";
            }            
        }else if($this->LastSubStrOccurence($this->sql_view, "where ") == ""){
            $this->sql_view .= " WHERE 1=1 ";
        }else{
            $ind = strpos(strtolower($this->sql_view), "group by");
            if($ind){                   
                $prefix = substr($sql, 0, $ind); 
                $suffix = substr($sql, $ind);                 
                $this->sql_view = $prefix." ";
                $this->sql_group_by = $suffix;
            }
        }
        $this->sql = $this->sql_view.$this->sql_group_by;
        
        // set default order
        if($start_order != ""){
            $default_sort_field = explode(",", $start_order);
            $default_sort_type = explode(",", $start_order_type);
            for($ind=0; $ind < count($default_sort_field); $ind++){
                $this->default_sort_field[$ind] = trim($default_sort_field[$ind]);
                if(isset($default_sort_type[$ind])){
                    if((strtolower(trim($default_sort_type[$ind])) == "asc") || (strtolower(trim($default_sort_type[$ind])) == "desc")){
                        $this->default_sort_type[$ind] = trim($default_sort_type[$ind]);
                    }else{
                        $this->default_sort_type[$ind] = "ASC";
                        $this->AddWarning('$default_order_type', $start_order_type);
                    }
                }else{
                    $this->default_sort_type[$ind] = "ASC";
                }
            }
        }else{
            $this->default_sort_field[0] = "1";
            $this->default_sort_type[0] = "ASC";
        }
        // create ORDER BY part of sql statment
        if($req_sort_field){            
            if(!substr_count($this->sql, "ORDER BY")){
                if($req_sort_field_type == "numeric"){
                    $this->sql_sort = " ORDER BY ABS(".$sort_field.") ".$req_sort_type;     
                    $numeric_sort = true;
                }else{
                    $this->sql_sort = " ORDER BY ".$sort_field." ".$req_sort_type;     
                }                
            }else{
              $this->sql_sort = " , ".$sort_field." ".$req_sort_type;
            }
        }else if($start_order != ""){
            $this->sql_sort = " ORDER BY ".$this->GetOrderByList();
        }else{
            $this->sql_sort = " ORDER BY 1 ASC";            
        }
        
        $this->GetDataSet($this->sql_sort, "", "", $sort_field, $numeric_sort);
        
        // check if the preliminary key is a Primary Key
        if(strtolower($this->GetFieldInfo(0, 'type', 1)) != "int"){
            $this->AddWarning($this->primary_key, "Check this field carefully, it may be not a Primary Key!");
        }
    }    

    //--------------------------------------------------------------------------
    // Set Language
    //--------------------------------------------------------------------------
    function SetInterfaceLang($lang_name = ""){
        $default_language = false;
        if(($lang_name != "") && (strlen($lang_name) == 2)){ $this->lang_name = $lang_name; }
        if (file_exists($this->directory.'languages/'.$this->lang_name.'.php')) {            
            include_once($this->directory.'languages/'.$this->lang_name.'.php');
            if(function_exists('setLanguage')){
                $this->lang = setLanguage();
            }else{
                if($this->debug){ echo "<label class='".$this->css_class."_class_error_message no_print'>Your language interface option is turned on, but the system was failed to open correctly stream: <b>'".$this->directory."languages/lang.php'</b>. <br>The structure of the file is corrupted or invalid. Please check it or return the language option to default value: <b>'en'</b>!</label><br>"; }
                $default_language = true;
            }
    	}else{
            if((strtolower($lang_name) != "en") && ($this->debug)){
                echo "<label class='".$this->css_class."_class_error_message no_print'>Your language interface option is turned on, but the system was failed to open stream: <b>'".$this->directory."languages/".$lang_name.".php'</b>. <br>No such file or directory. Please check it or return the language option to default value: <b>'en'</b>!</label><br>";
            }
            $default_language = true;                    
    	}
               
        if($default_language){
            $this->lang['='] = "=";  // "equal"; 
            $this->lang['>'] = ">";  // "bigger"; 
            $this->lang['<'] = "<";  // "smaller";            
            $this->lang['add'] = "Add";
            $this->lang['add_new'] = "+ Add New";
            $this->lang['add_new_record'] = "Add new record"; 
            $this->lang['add_new_record_blocked'] = "Security check: attempt of adding a new record! Check your settings, the operation is not allowed!";
            $this->lang['adding_operation_completed'] = "The adding operation completed successfully!";
            $this->lang['adding_operation_uncompleted'] = "The adding operation uncompleted!";
            $this->lang['and'] = "and";
            $this->lang['any'] = "any";                         
            $this->lang['ascending'] = "Ascending"; 
            $this->lang['back'] = "Back";
            $this->lang['cancel'] = "Cancel";
            $this->lang['cancel_creating_new_record'] = "Are you sure you want to cancel creating new record?";
            $this->lang['check_all'] = "Check All";
            $this->lang['clear'] = "Clear";                
            $this->lang['create'] = "Create";
            $this->lang['create_new_record'] = "Create new record";            
            $this->lang['current'] = "current";
            $this->lang['delete'] = "Delete";
            $this->lang['delete_record'] = "Delete record";
            $this->lang['delete_record_blocked'] = "Security check: attempt of deleting a record! Check your settings, the operation is not allowed!";
            $this->lang['delete_selected'] = "Delete selected";
            $this->lang['delete_selected_records'] = "Are you sure you want to delete the selected records?";
            $this->lang['delete_this_record'] = "Are you sure you want to delete this record?";                             
            $this->lang['deleting_operation_completed'] = "The deleting operation completed successfully!";
            $this->lang['deleting_operation_uncompleted'] = "The deleting operation uncompleted!";                                    
            $this->lang['descending'] = "Descending";
            $this->lang['details'] = "Details";
            $this->lang['details_selected'] = "View selected";                                    
            $this->lang['edit'] = "Edit";                
            $this->lang['edit_selected'] = "Edit selected";
            $this->lang['edit_record'] = "Edit record"; 
            $this->lang['edit_selected_records'] = "Are you sure you want to edit the selected records?";               
            $this->lang['errors'] = "Errors";            
            $this->lang['export_to_excel'] = "Export to Excel";
            $this->lang['export_to_pdf'] = "Export to PDF";
            $this->lang['export_to_xml'] = "Export to XML";
            $this->lang['field'] = "Field";
            $this->lang['field_value'] = "Field Value";
            $this->lang['file_find_error'] = "Cannot find file: <b>_FILE_</b>. <br>Check if this file exists and you use a correct path!";                                                
            $this->lang['file_opening_error'] = "Cannot open a file. Check your permissions.";            
            $this->lang['file_writing_error'] = "Cannot write to file. Check writing permissions.";
            $this->lang['file_invalid file_size'] = "Invalid file size: ";
            $this->lang['file_uploading_error'] = "There was an error while uploading, please try again!";
            $this->lang['file_deleting_error'] = "There was an error while deleting!";
            $this->lang['first'] = "first";
            $this->lang['handle_selected_records'] = "Are you sure you want to handle the selected records?";
            $this->lang['hide_search'] = "Hide Search";            
            $this->lang['last'] = "last";
            $this->lang['like'] = "like";
            $this->lang['like%'] = "like%";  // "begins with"; 
            $this->lang['%like'] = "%like";  // "ends with";
            $this->lang['%like%'] = "%like%";  // "ends with";
            $this->lang['loading_data'] = "loading data...";            
            $this->lang['max'] = "max";                            
            $this->lang['next'] = "next";
            $this->lang['no'] = "No";
            $this->lang['no_data_found'] = "No data found";
            $this->lang['no_data_found_error'] = "No data found! Please, check carefully your code syntax!<br>It may be case sensitive or there are some unexpected symbols.";                                
            $this->lang['no_image'] = "No Image";
            $this->lang['not_like'] = "not like";
            $this->lang['of'] = "of";
            $this->lang['operation_was_already_done'] = "The operation was already completed! You cannot retry it again.";            
            $this->lang['or'] = "or";            
            $this->lang['pages'] = "Pages";                    
            $this->lang['page_size'] = "Page size";
            $this->lang['previous'] = "previous";
            $this->lang['printable_view'] = "Printable View";
            $this->lang['print_now'] = "Print Now";            
            $this->lang['print_now_title'] = "Click here to print this page";
            $this->lang['record_n'] = "Record # ";
            $this->lang['refresh_page'] = "Refresh Page";
            $this->lang['remove'] = "Remove";
            $this->lang['reset'] = "Reset";                        
            $this->lang['results'] = "Results";
            $this->lang['required_fields_msg'] = "<font color='#cd0000'>*</font> Items marked with an asterisk are required";            
            $this->lang['search'] = "Search";
            $this->lang['search_d'] = "Search"; // (description)
            $this->lang['search_type'] = "Search type";
            $this->lang['select'] = "select";
            $this->lang['set_date'] = "Set date";
            $this->lang['sort'] = "Sort";
            $this->lang['total'] = "Total";
            $this->lang['turn_on_debug_mode'] = "For more information, turn on debug mode.";
            $this->lang['uncheck_all'] = "Uncheck All";
            $this->lang['unhide_search'] = "Unhide Search";
            $this->lang['unique_field_error'] = "The field _FIELD_ allows only unique values - please reenter!";
            $this->lang['update'] = "Update";
            $this->lang['update_record'] = "Update record";
            $this->lang['update_record_blocked'] = "Security check: attempt of updating a record! Check your settings, the operation is not allowed!";
            $this->lang['updating_operation_completed'] = "The updating operation completed successfully!";
            $this->lang['updating_operation_uncompleted'] = "The updating operation uncompleted!";                                    
            $this->lang['upload'] = "Upload";            
            $this->lang['view'] = "View";
            $this->lang['view_details'] = "View details";
            $this->lang['warnings'] = "Warnings";
            $this->lang['with_selected'] = "With selected";
            $this->lang['wrong_field_name'] = "Wrong field name";
            $this->lang['wrong_parameter_error'] = "Wrong parameter in [<b>_FIELD_</b>]: _VALUE_";
            $this->lang['yes'] = "Yes";
        }
    }

    //--------------------------------------------------------------------------
    // Set direction
    //--------------------------------------------------------------------------
    function SetDirection($direction = "ltr"){
        $this->direction = $direction;
    }

    //--------------------------------------------------------------------------
    // Set layouts
    //--------------------------------------------------------------------------
    function SetLayouts($layouts = ""){
        $this->layouts['view']   = (isset($layouts['view'])) ? $layouts['view'] : "0";
        $this->layouts['edit']   = (isset($layouts['edit'])) ? $layouts['edit'] : "0";
        $this->layouts['show']   = (isset($layouts['details'])) ? $layouts['details'] : "1";
        $this->layouts['filter'] = (isset($layouts['filter'])) ? $layouts['filter'] : "0";        
    }

    //--------------------------------------------------------------------------
    // Set templates for customized layouts
    //--------------------------------------------------------------------------
    function SetTemplates($view = "", $add_edit = "", $details = ""){
        $this->templates['view'] = $view;
        $this->templates['edit'] = $add_edit;
        $this->templates['show'] = $details;
    }

    //--------------------------------------------------------------------------
    // Set mode add/edit/cancel/delete
    //--------------------------------------------------------------------------
    function SetModes($parameters){
        $this->modes = array();
        if(is_array($parameters)){
            foreach($parameters as $modeName => $modeValue){
                $this->modes[$modeName] = $modeValue;
            }            
        }
        $this->mode = "view";
    }  	    

    //--------------------------------------------------------------------------
    // Allow scrolling settings
    //--------------------------------------------------------------------------
    function AllowScrollingSettings($scrolling_option = false){
        $this->scrolling_option = (($scrolling_option == true) || ($scrolling_option == "true")) ? true : false ;        
    }

    //--------------------------------------------------------------------------
    // Set scrolling settings
    //--------------------------------------------------------------------------
    function setScrollingSettings($width="", $height=""){
        if($width != "") $this->scrolling_width = $width;
        if($height != "") $this->scrolling_height = $height;
    }

    //--------------------------------------------------------------------------
    // Allow multirow operations
    //--------------------------------------------------------------------------
    function AllowMultirowOperations($multirow_option = false){
        $this->multirow_allowed = (($multirow_option == true) || ($multirow_option == "true")) ? true : false ;
    }

    //--------------------------------------------------------------------------
    // Set multirow operations
    //--------------------------------------------------------------------------    
    function SetMultirowOperations($multirow_operations = ""){
        if(is_array($multirow_operations)){                
            foreach($multirow_operations as $fldName => $fldValue){
                $this->multirow_operations_array[$fldName] = $fldValue;
            }
        }        
    }

    //--------------------------------------------------------------------------
    // Set css class
    //--------------------------------------------------------------------------
    function SetCssClass($class = "default"){        
        $this->css_class = $class;
    }
    
    //--------------------------------------------------------------------------
    // Set Http Get Vars
    //--------------------------------------------------------------------------
    function SetHttpGetVars($http_get_vars = ""){
        $this->http_get_vars = $http_get_vars;
    }

    //--------------------------------------------------------------------------
    // Set Other DataGrids
    //--------------------------------------------------------------------------
    function SetAnotherDatagrids($another_datagrids = ""){
        $this->another_datagrids = $another_datagrids;
    }

    //--------------------------------------------------------------------------
    // Set title for datagrid
    //--------------------------------------------------------------------------
    function SetCaption($dg_caption = ""){
        $this->caption = $dg_caption;
    }

    //--------------------------------------------------------------------------
    // Allow exporting functions
    //--------------------------------------------------------------------------
    function AllowPrinting  ($option = true) { $this->printing_allowed  = (($option == true) || ($option == "true")) ? true : false ; }    
    function AllowExporting ($option = true, $exporting_directory = "") { $this->exporting_allowed = (($option == true) || ($option == "true")) ? true : false ; $this->exporting_directory = $exporting_directory; }
    function AllowExportingTypes($exporting_types = ""){
        if(is_array($exporting_types)){
            $this->exporting_types["excel"] = (isset($exporting_types["excel"]) && (($exporting_types["excel"] == true) || ($exporting_types["excel"] == "true"))) ?  true : false;
            $this->exporting_types["pdf"]   = (isset($exporting_types["pdf"]) && (($exporting_types["pdf"] == true) || ($exporting_types["pdf"] == "true"))) ?  true : false;
            $this->exporting_types["xml"]   = (isset($exporting_types["xml"]) && (($exporting_types["xml"] == true) || ($exporting_types["xml"] == "true"))) ?  true : false;
        }    
    }

    //--------------------------------------------------------------------------
    // Set sorting settings
    //--------------------------------------------------------------------------    
    function AllowSorting   ($option = true) { $this->sorting_allowed   = (($option == true) || ($option == "true")) ? true : false ; }    

    //--------------------------------------------------------------------------
    // Set paging settings
    //--------------------------------------------------------------------------    
    function AllowPaging($option = true, $rows_numeration = false, $numeration_sign = "N #"){
        $this->paging_allowed = (($option == true) || ($option == "true")) ? true : false ;
        $this->rows_numeration = $rows_numeration;
        $this->numeration_sign = $numeration_sign;       
    }

    function SetPagingSettings($lower=false, $upper=false, $pages_array=false, $default_page_size="", $paging_arrows=""){
        if(($lower == true) || ($lower == "true")){
            if($lower['results']) $this->lower_paging['results'] = $lower['results'];
            if($lower['results_align']) $this->lower_paging['results_align'] = $lower['results_align'];
            if($lower['pages']) $this->lower_paging['pages'] = $lower['pages'];            
            if($lower['pages_align']) $this->lower_paging['pages_align'] = $lower['pages_align'];
            if($lower['page_size']) $this->lower_paging['page_size'] = $lower['page_size'];
            if($lower['page_size_align']) $this->lower_paging['page_size_align'] = $lower['page_size_align'];
        }
        if(($upper == true) || ($upper == "true")){
            if($upper['results']) $this->upper_paging['results'] = $upper['results'];
            if($upper['results_align']) $this->upper_paging['results_align'] = $upper['results_align'];
            if($upper['pages']) $this->upper_paging['pages'] = $upper['pages'];            
            if($upper['pages_align']) $this->upper_paging['pages_align'] = $upper['pages_align'];
            if($upper['page_size']) $this->upper_paging['page_size'] = $upper['page_size'];
            if($upper['page_size_align']) $this->upper_paging['page_size_align'] = $upper['page_size_align'];
        }
        if($pages_array){
            if(is_array($pages_array) && (count($pages_array) > 0)){
                $first_key = "";
                foreach($pages_array as $key => $val){
                    if($first_key == "") {$first_key = $key;};
                    if (intval($pages_array[$key]) == 0) $pages_array[$key] = 1;
                }
                $this->pages_array = $pages_array;
                $this->req_page_size = ($pages_array[$first_key] > 0) ? $pages_array[$first_key] : $this->req_page_size;                
            }
        }
        if(($default_page_size != "") && ($default_page_size > 0)) { $this->default_page_size = $this->req_page_size = $default_page_size; }
    
        if($paging_arrows != ""){
            if(is_array($paging_arrows) && (count($paging_arrows) > 0)){
                $this->first_arrow    = (isset($paging_arrows["first"])) ? $paging_arrows["first"] : $this->first_arrow;
                $this->previous_arrow = (isset($paging_arrows["previous"])) ? $paging_arrows["previous"] : $this->previous_arrow;
                $this->next_arrow     = (isset($paging_arrows["next"])) ? $paging_arrows["next"] : $this->next_arrow;
                $this->last_arrow     = (isset($paging_arrows["last"])) ? $paging_arrows["last"] : $this->last_arrow;
            }
        }        
    }

    //--------------------------------------------------------------------------
    // Set filtering settings
    //--------------------------------------------------------------------------
    function AllowFiltering ($option = false, $show_search_type = "true"){
        $this->filtering_allowed = (($option == true) || ($option == "true")) ? true : false ;
        $this->show_search_type  = (($show_search_type == true) || ($show_search_type == "true")) ? true : false ;
    }
    
    function SetFieldsFiltering($filter_fields_array = ""){
        $req_selSearchType = $this->GetVariable('_ff_selSearchType');
        $req_onSUBMIT_FILTER = $this->GetVariable('_ff_onSUBMIT_FILTER');
        
        if(is_array($filter_fields_array)){
            foreach($filter_fields_array as $fldName => $fldValue){
                $this->filter_fields[$fldName] = $fldValue;
            }                   
            if($req_onSUBMIT_FILTER != ""){
                $search_type_start = "AND";
                if($req_selSearchType == "0"){
                    $search_type = "AND";                    
                }else{
                    $search_type = "OR";
                }
                if(!substr_count(strtolower($this->sql_view), "where") && !substr_count(strtolower($this->sql_view), "having")) $this->sql_view .= " WHERE 1=1 ";
                foreach($filter_fields_array as $fldName => $fldValue){
                    $table_field_name = "";                    
                    $fldValue_fields = str_replace(" ", "", $fldValue['field']);
                    $fldValue_fields = explode(",", $fldValue_fields);
                    
                    foreach($fldValue_fields as $fldValue_field){
                        // ignore filter field if there was empty 'table' or 'field' attribute
                        if((trim($fldValue['table']) == "") || (trim($fldValue['field']) == "")) { continue; }
                        $table_field_name = $fldValue['table']."_".$fldValue_field;
                        if(isset($_REQUEST[$this->uniquePrefix."_ff_".$table_field_name]) && ($_REQUEST[$this->uniquePrefix."_ff_".$table_field_name] !== "")){                        
                            $filter_field_operator =  $table_field_name."_operator";                        
                            if(isset($fldValue['case_sensitive']) && ($fldValue['case_sensitive'] != true)){
                                $fldTableField = $this->GetLcaseFooByDbType()."(".(($fldValue['table'] != "") ? $fldValue['table']."." : "" ).$fldValue_field.")";
                                $fldTableFieldName = $this->StrToLower($_REQUEST[$this->uniquePrefix."_ff_".$table_field_name]);
                            }else{
                                $fldTableField = (($fldValue['table'] != "") ? $fldValue['table']."." : "" ).$fldValue_field;                            
                                $fldTableFieldName = $_REQUEST[$this->uniquePrefix."_ff_".$table_field_name];
                            }
                            if(isset($fldValue['comparison_type']) && (strtolower($fldValue['comparison_type']) == "numeric")){
                                $left_geresh =""; 
                            }else{
                                $left_geresh ="'"; 
                            }                            
                                
                            // split by separated words if user splitted them by ","
                            $splitted_fldTableFieldName = split(",",$fldTableFieldName);
                            $separated_word_count = 0;
                            if(count($splitted_fldTableFieldName) > 0) $this->sql_view .= " ".$search_type_start." ( ";
                            foreach($splitted_fldTableFieldName as $separated_word){
                                $separated_word = trim($separated_word);                                                                
                                if($separated_word_count > 0 ){ $this->sql_view .= " OR "; }
                                $requested_filter_field_operator = isset($_REQUEST[$this->uniquePrefix."_ff_".$filter_field_operator]) ? $_REQUEST[$this->uniquePrefix."_ff_".$filter_field_operator] : "";
                                if($requested_filter_field_operator != ""){                                
                                    if(isset($fldValue['comparison_type']) && (strtolower($fldValue['comparison_type']) == "binary")) $comparison_type = "BINARY";
                                    else $comparison_type ="";
                                    
                                    // To be sure SQL understands our quotation
                                    if(substr_count($requested_filter_field_operator, "like") > 0){
                                        $separated_word = str_replace('\"', mysql_real_escape_string('\\\"'), $separated_word); // double quotation mark 
                                        $separated_word = str_replace("\'", mysql_real_escape_string("\\\'"), $separated_word); // single quotation mark
                                    }else{
                                        $separated_word = str_replace('\"', mysql_real_escape_string('\\"'), $separated_word); // double quotation mark 
                                        $separated_word = str_replace("\'", mysql_real_escape_string("\\'"), $separated_word); // single quotation mark                                        
                                    }
                                    
                                    if($requested_filter_field_operator == "like"){
                                        $this->sql_view .= " $fldTableField ".$requested_filter_field_operator." ".$comparison_type." '%".$separated_word."%'";
                                    }else if($requested_filter_field_operator == "like%"){
                                        $this->sql_view .= " $fldTableField ".substr($requested_filter_field_operator, 0, 4)." ".$comparison_type." '".$separated_word."%'";
                                    }else if($requested_filter_field_operator == "%like"){
                                        $this->sql_view .= " $fldTableField ".substr($requested_filter_field_operator, 1, 4)." ".$comparison_type." '%".$separated_word."'";
                                    }else if($requested_filter_field_operator == "%like%"){
                                        $this->sql_view .= " $fldTableField ".substr($requested_filter_field_operator, 1, 4)." ".$comparison_type." '%".$separated_word."%'";
                                    }else{
                                        $this->sql_view .= " $fldTableField ".$requested_filter_field_operator." $left_geresh".$separated_word."$left_geresh ";
                                    }
                                }else{
                                    $this->sql_view .= " $fldTableField = $left_geresh".$separated_word."$left_geresh ";                                    
                                }                                                        
                                $separated_word_count++;                                
                            }
                            if(count($splitted_fldTableFieldName) > 0) $this->sql_view .= " ) ";
                            if($search_type_start !== $search_type){ $search_type_start = $search_type; }
                        }                    
                    }                    
                }
                $this->DataSource($this->db_handler, $this->sql_view);
            }
        }        
    }
    
    //--------------------------------------------------------------------------
    // Set view mode table properties
    //--------------------------------------------------------------------------    
    function SetViewModeTableProperties($vmt_properties = ""){        
        if(is_array($vmt_properties) && (count($vmt_properties) > 0)){
            if(isset($vmt_properties['width'])) $this->tblWidth['view'] = $vmt_properties['width'];    
        }
    }

    //--------------------------------------------------------------------------
    // Set columns in view mode
    //--------------------------------------------------------------------------    
    function SetColumnsInViewMode($columns = ""){
        unset($this->columns_view_mode);
        $this->columns_edit_mode = array();
        if(is_array($columns)){        
            foreach($columns as $fldName => $fldValue){
                $this->columns_view_mode[$fldName] = $fldValue;
            }
        }
    }

    //--------------------------------------------------------------------------
    // Set auto-generated columns in view mode
    //--------------------------------------------------------------------------    
    function SetAutoColumnsInViewMode($auto_columns = ""){
        if(($auto_columns == true) || ($auto_columns == "true")){
            unset($this->columns_view_mode);
            if($this->db_handler->isError($this->data_set) == 1){
                $this->is_error = true;
                $this->AddErrors();
            }else{
                $fields = $this->data_set->tableInfo();
                for($ind=0; $ind < $this->data_set->numCols(); $ind++){                
                    $this->columns_view_mode[$fields[$ind]['name']] =
                    array("header"  =>$fields[$ind]['name'],
                        "type"      =>"label",
                        "align"     =>"left",
                        "width"     =>"210px",
                        "wrap"      =>"wrap",
                        "tooltip"   =>false,
                        "text_length"=>"-1",
                        "case"      =>"normal",
                        "summarize" =>false,
                        "visible"   =>"true"
                    );
                }                
            }
        }
    }

    //--------------------------------------------------------------------------
    // Set add/edit/details mode table properties
    //--------------------------------------------------------------------------    
    function SetEditModeTableProperties($emt_properties = ""){        
        if(is_array($emt_properties) && (count($emt_properties) > 0)){
            if(isset($emt_properties['width'])) $this->tblWidth['edit'] = $emt_properties['width'];    
        }
    }

    //--------------------------------------------------------------------------
    // Set details mode table properties
    //--------------------------------------------------------------------------    
    function SetDetailsModeTableProperties($dmt_properties = ""){        
        if(is_array($dmt_properties) && (count($dmt_properties) > 0)){
            if(isset($dmt_properties['width'])) $this->tblWidth['details'] = $dmt_properties['width'];    
        }
    }
    
    //--------------------------------------------------------------------------
    // Set editing table & primary key id
    //--------------------------------------------------------------------------
    function SetTableEdit($tbl_name, $field_name, $condition = ""){
        $this->tbl_name = $tbl_name;
        $this->primary_key = $field_name;
        $this->condition = $condition;
    }

    //--------------------------------------------------------------------------
    // Set columns in add/edit/details mode
    //--------------------------------------------------------------------------    
    function SetColumnsInEditMode($columns = ""){
        unset($this->columns_edit_mode);                    
        if(is_array($columns)){
            foreach($columns as $fldName => $fldValue){
                $this->columns_edit_mode[$fldName] = $fldValue;
            }
        }
    }

    //--------------------------------------------------------------------------
    // Set auto-generated columns in add/edit/details mode
    //--------------------------------------------------------------------------    
    function SetAutoColumnsInEditMode($auto_columns = ""){
        if(($auto_columns == true) || ($auto_columns == "true")){
            unset($this->columns_edit_mode);        
            $sql  = " SELECT * FROM ".$this->tbl_name." ";
            $dSet = $this->db_handler->query($sql);
            if($this->db_handler->isError($this->data_set) == 1){
                $this->is_error = true;
                $this->AddErrors();
            }else{
                $fields = $dSet->tableInfo();            
                for($ind=0; $ind < $dSet->numCols(); $ind++){
                    if($fields[$ind]['name'] != $this->primary_key){
                        // get required simbol
                        $required_simbol = ($this->IsFieldRequired($fields[$ind]['name'])) ? "r" : "s";
                        // get field view type & view type 
                        $type_view = "texbox";
                        switch (strtolower($fields[$ind]['type'])){
                            case 'int':     // int: TINYINT, SMALLINT, MEDIUMINT, INT, INTEGER, BIGINT, TINY, SHORT, LONG, LONGLONG, INT24
                                $type_simbol = "i"; break;            
                            case 'real':    // real: FLOAT, DOUBLE, DECIMAL, NUMERIC
                                $type_simbol = "f"; break;            
                            case 'null':    // empty: NULL            
                                $type_simbol = "t"; break;
                            case 'string':  // string: CHAR, VARCHAR, TINYTEXT, TEXT, MEDIUMTEXT, LONGTEXT, ENUM, SET, VAR_STRING
                            case 'blob':    // blob: TINYBLOB, MEDIUMBLOB, LONGBLOB, BLOB, TEXT
                            case 'date':    // date: DATE
                            case 'timestamp':    // date: TIMESTAMP
                            case 'year':    // date: YEAR
                            case 'time':    // date: TIME
                                $type_simbol = "t"; break;                        
                            case 'datetime':    // date: DATETIME
                                $type_view = "datetime";
                                $type_simbol = "t"; break;
                            default:
                                $type_simbol = "t"; break;
                        }
                        // get required-type simbols
                        $req_type_simbols = $required_simbol."".$type_simbol;
                        // get field maxlength
                        $field_maxlength = ($fields[$ind]['len'] <= 0) ? "" : $fields[$ind]['len'];                    
                        $this->columns_edit_mode[$fields[$ind]['name']] =
                        array("header"  =>$fields[$ind]['name'],
                            "type"      =>"$type_view",
                            "req_type"  =>"$req_type_simbols",
                            "width"     =>"210px",
                            "maxlength" =>"$field_maxlength",
                            "title"     =>$fields[$ind]['name'],
                            "readonly"  =>false,
                            "visible"   =>"true"                            
                        );                    
                    }
                }                        
            }            
        }
    }

    //--------------------------------------------------------------------------
    // Set set foreign keys editing
    //--------------------------------------------------------------------------    
    function SetForeignKeysEdit($foreign_keys_array = ""){
        if(is_array($foreign_keys_array)){                
            foreach($foreign_keys_array as $fldName => $fldValue){
                $this->foreign_keys_array[$fldName] = $fldValue;
            }
        }
    }

    //--------------------------------------------------------------------------
    // Bind data and draw DG
    //--------------------------------------------------------------------------
    function Bind($show = true){                               
        $this->SetInterfaceLang();
        $this->SetCommonJavaScript();
        
        $req_mode = $this->GetVariable('mode');
        $req_rid = $this->GetVariable('rid');
        $req_new = $this->GetVariable('new');
        $req_page_size = $this->GetVariable('page_size');
        $req_sort_field = $this->GetVariable('sort_field');
        $req_sort_field_by = $this->GetVariable('sort_field_by');
        $req_sort_field_type = $this->GetVariable('sort_field_type');
        $sort_field = ($req_sort_field_by != "") ? $req_sort_field_by : $req_sort_field ;
        $req_sort_type = $this->GetVariable('sort_type');
        $req_print = $this->GetVariable('print');

        // protect datagrid from a Hack Attacks
        if($this->SecurityCheck()){
            // VIEW mode processing 
            if(($req_mode == "") || (($req_mode == "view") && ($req_sort_field_type == "numeric"))){
                if($req_sort_field_type == "numeric") $numeric_sort = true; else $numeric_sort = false;
                $this->GetDataSet($this->sql_sort, "", "", $req_sort_field_type, $numeric_sort);
                $view_limit = $this->SetSqlLimitByDbType("0", $req_page_size);
            }
            
            // DELETE mode processing 
            if(($req_mode == "delete") && ($req_rid != "")){          
                $this->rid = $req_rid;
                if($req_print != true){
                    $this->DeleteRow($this->rid);
                }
                $this->sql = $this->sql_view;
                $this->GetDataSet($this->sql_sort);
                $this->mode = "view";          
            }
            
            // UPDATE mode processing 
            if($req_mode == "update"){
                $this->rid = $req_rid;
                if($req_print != true){
                    if($req_new != 1){
                        $this->UpdateRow($this->rid);
                    }else{
                        $this->AddRow();
                        $this->mode_after_update = "";
                    }                
                }
                if(($req_new != 1) && ($this->mode_after_update == "edit")){
                    $req_mode = "edit";
                    $this->mode = "edit";
                }else{
                    $this->sql = $this->sql_view;
                    $this->GetDataSet($this->sql_sort);
                    $this->mode = "view";
                }
            }            
    
            // EDIT & DETAILS modes processing 
            if((($req_mode == "edit") || ($req_mode == "details")) && ($req_rid != "")){
                if($req_new == 1){
                    $this->data_set = $this->db_handler->query($this->sql);            
                }
                $this->rid = $req_rid;
                $this->AllowSorting(false);
                $this->AllowPaging(false);            
                $this->sql_sort = " ORDER BY " . $this->primary_key . " DESC";
                if(($this->layouts['view'] == "0") && ($this->layouts['edit'] == "1") && ($req_mode == "details")){
                    $this->rids = explode("-", $this->rid);
                    // if we have more that 1 row selected
                    if(count($this->rids) > 1){ 
                        $where = "WHERE ".$this->primary_key." IN ('-1' ";
                        foreach ($this->rids as $key){ if($key != "") $where .= ", '".$key."' "; }
                        $where .= ") ";
                        $this->multi_rows = count($this->rids);
                    }else{
                        $where = "WHERE ".$this->primary_key." = '".$req_rid."' ";    
                    }
                    if($this->condition != ""){ $where .= " AND ". $this->condition; }
                    $view_limit = $this->SetSqlLimitByDbType("0", $req_page_size);
                    //$this->sql_sort = ""; we need this sorted for multi-rows editing
                    $this->sql = "SELECT * FROM $this->tbl_name ".$where;                 
                }else if(($this->layouts['view'] == "0") && ($this->layouts['edit'] == "1") && ($req_mode == "edit")){
                    $this->rids = explode("-", $this->rid);
                    // if we have more that 1 row selected
                    // mr_1
                    if(count($this->rids) > 1){ 
                        $where = "WHERE ".$this->primary_key." IN ('-1' ";
                        foreach ($this->rids as $key){ if($key != "") $where .= ", '".$key."' "; }
                        $where .= ") ";
                        $this->multi_rows = count($this->rids);
                    }else{
                        $where = "WHERE ".$this->primary_key." = '".$req_rid."' ";    
                    }
                    if($this->condition != ""){ $where .= " AND ". $this->condition; }                     
                    $view_limit = $this->SetSqlLimitByDbType("0", $req_page_size);                
                    //$this->sql_sort = ""; we need this sorted for multi-rows editing
                    $this->sql = "SELECT * FROM $this->tbl_name ".$where; 
                }else if(($this->layouts['view'] == "0") && ($this->layouts['edit'] == "0") && ($req_mode == "details")){                
                    // if we have more that 1 row selected
                    $this->rids = explode("-", $this->rid);
                    if(count($this->rids) > 1){ 
                        $where = "WHERE ".$this->primary_key." IN ('-1' ";
                        foreach ($this->rids as $key){ if($key != "") $where .= ", '".$key."' "; }
                        $where .= ") ";
                        $this->multi_rows = count($this->rids);
                    }else{
                        $where = "WHERE ".$this->primary_key." = '".$req_rid."' ";    
                    }
                    $view_limit = $this->SetSqlLimitByDbType("0", $req_page_size);
                    $this->sql_sort = "";
                    $this->sql = "SELECT * FROM $this->tbl_name ".$where; 
                }else if(($this->layouts['view'] == "0") && ($this->layouts['edit'] == "0") && ($req_mode == "edit")){
                    $view_limit = "";                
                    if($this->condition != ""){ 
                        $where = "WHERE ". $this->condition; 
                    } else { 
                        $view_limit = $this->SetSqlLimitByDbType("0", $req_page_size); 
                        $where = "WHERE ".$this->primary_key." >= '".$req_rid."' ";
                    }                    
                    if($req_sort_field != "") $this->sql_sort = " ORDER BY ".(($req_sort_field_type == "numeric") ? " ABS (".$sort_field.")" : $sort_field)." ".$req_sort_type;
                    $this->sql = "SELECT * FROM $this->tbl_name ".$where;
                }else{
                    $view_limit = $this->SetSqlLimitByDbType("0", $req_page_size);                
                    $where = "WHERE ".$this->primary_key." = '".$req_rid."' ";
                    $this->sql = "SELECT * FROM $this->tbl_name ".$where;                 
                }            
    
                $this->GetDataSet($this->sql_sort, $view_limit, $this->mode_after_update);
                if($req_mode == "edit") $this->mode = "edit";
                else $this->mode = "details";           
            }
    
            // CANCEL mode processing 
            if($req_mode == "cancel"){
                $this->rid = "";
                $this->sql = $this->sql_view;
                $this->GetDataSet($this->sql_sort);            
                $this->mode = "view";
            }    
    
            // ADD mode processing 
            if($req_mode == "add"){
                $this->mode_after_update = "";
                // we don't need multirow option allowed when we add new record
                $this->multirow_allowed = false;
                if(($this->layouts['view'] == "0") && ($this->layouts['edit'] == "0")){
                    // we need
                    $view_limit = "";
                    if($this->condition != "") $where = " WHERE ". $this->condition;
                    else $where = "";
                    $this->sql = "SELECT * FROM $this->tbl_name ".$where;                
                }else{
                    $view_limit = "";
                    $this->sql = "SELECT * FROM $this->tbl_name ";                
                }
                $this->sql_sort = " ORDER BY " . $this->primary_key . " DESC";
                $this->GetDataSet($this->sql_sort, $view_limit);
                $this->rid = -1;
                $this->AllowSorting(false);
                $this->AllowPaging(false);
                $this->mode = "edit";
            }            
        }else{
            // VIEW mode processing 
            if($req_mode == ""){
                if($req_sort_field_type == "numeric") $numeric_sort = true; else $numeric_sort = false;
                $this->GetDataSet($this->sql_sort, "", "", $req_sort_field_type, $numeric_sort);
                $view_limit = $this->SetSqlLimitByDbType("0", $req_page_size);
            }
            if($this->debug){
                echo "<br><center><label class='default_class_error_message'>Wrong parameters were passed! Possible Hack attack!</label></center><br>";
            }else{
                echo "<br><center><label class='default_class_error_message'>Wrong parameters were passed!</label></center><br>";                
            }
        }
        
        $this->DisplayErrors();
        $this->DisplayWarnings();        
        $this->DisplayDataSent();        
        
        if($this->data_set){            
            if(($this->mode === "edit") || ($this->mode === "add")){
                $this->layout_type = "edit";
                $this->AllowHighlighting(false);
            }else if($this->mode === "details"){
                $this->layout_type = "show";
                $this->AllowHighlighting(false);
            }else {
                $this->layout_type = "view";
            }
            
            // sort columns by mode order
            $this->SortColumns($this->mode);

            if($show == true){
                $this->WriteCssClass();
                if($this->layouts[$this->layout_type] == "0"){
                    $this->DrawTabular();
                }else if($this->layouts[$this->layout_type] == "1"){
                    $this->DrawColumnar();
                }else if($this->layouts[$this->layout_type] == "2"){
                    $this->DrawCustomized();                
                }else{
                    $this->DrawTabular();
                }
            }
        }
        
        $this->SetCommonJavaScriptEnd();
        // finish calculating running time of a script
        if($this->debug){
            $this->end_time = $this->GetFormattedMicrotime();
            echo "<br><center><label class='default_class_label'>Total running time: ".round((float)$this->end_time - (float)$this->start_time, 6)." sec.</label></center>";
        }        
    }

    ////////////////////////////////////////////////////////////////////////////
    //
    // Non documented
    //
    ////////////////////////////////////////////////////////////////////////////
    
    //--------------------------------------------------------------------------
    // ExecuteSQL - returns dataSet after executing custom SQL statement
    //--------------------------------------------------------------------------
    function ExecuteSQL($sql = ""){
        $dataSet = "";
        if($this->db_handler){
            if($sql != ""){
                $this->SetEncodingOnDatabase();
                $dataSet = & $this->db_handler->query($sql);
            }
            if($this->debug){
                if($this->db_handler->isError($dataSet) == 1){ $debugInfo = "<tr><td>".$dataSet->getDebugInfo()."</td></tr>"; } else { $debugInfo = ""; };
                echo "<table width='".$this->tblWidth[$this->mode]."'><tr><td align='left'><label class='".$this->css_class."_class_label'><b>sql: </b>".$sql."</label></td></tr>".$debugInfo."</table><br>";
            }               
        }else{
            $this->AddWarning('ExecuteSQL() method', 'This method must be called after DataSource() method only!');
        }
        return $dataSet;               
    }

    //--------------------------------------------------------------------------
    // SelectSqlItem - return the first field after executing custom SELECT SQL statement
    //--------------------------------------------------------------------------
    function SelectSqlItem($sql = ""){
        $dataField = "";
        if($this->db_handler){       
            if($sql != ""){
                $this->SetEncodingOnDatabase();
                $this->db_handler->setFetchMode(DB_FETCHMODE_ORDERED); 
                $dataSet = & $this->db_handler->query($sql);
                if($dataSet->numCols() > 0){
                   $row = $dataSet->fetchRow();
                   $dataField = $row[0];
                }
                if($this->debug){
                    if($this->db_handler->isError($dataSet) == 1){ $debugInfo = "<tr><td>".$dataSet->getDebugInfo()."</td></tr>"; } else { $debugInfo = ""; };
                    echo "<table width='".$this->tblWidth[$this->mode]."'><tr><td align='left'><label class='".$this->css_class."_class_label'><b>select sql (".$this->StrToLower($this->lang['total']).": ".$dataSet->numCols().") </b>".$sql."</label></td></tr>".$debugInfo."</table><br>";
                }              
            }
        }else{
            $this->AddWarning('SelectSqlItem() method', 'This method must be called after DataSource() method only!');
        }
        return $dataField;               
    }
    
    function AllowHighlighting($option = true){ $this->row_highlighting_allowed = (($option == true) || ($option == "true")) ? true : false ; }    

    //--------------------------------------------------------------------------
    // Set javascript errors display style
    //--------------------------------------------------------------------------
    function SetJsErrorsDisplayStyle($display_style = "all"){        
        $this->js_validation_errors = ($display_style == "all") ? "true" : "false";
    }    

    //--------------------------------------------------------------------------
    // Get current Id
    //--------------------------------------------------------------------------
    protected function GetCurrentId(){
        return ($this->rid != "") ? $this->rid : $this->GetVariable('rid');
    }

    //--------------------------------------------------------------------------
    // Get next Id
    //--------------------------------------------------------------------------
    function GetNextId(){
        if(isset($this->db_handler)){
            // need to be declined if creating new row was cancelied
            // return $this->db_handler->nextId("'".$this->tbl_name."'");            
            $sql  = " SELECT MAX(".$this->primary_key.") as max_id FROM ".$this->tbl_name." ";
            $dSet = $this->db_handler->query($sql);
            if($row = $dSet->fetchRow()){
                return $row[0]+1;
            }
        }else{
            return "-1";        
        }        
    } 

    //--------------------------------------------------------------------------
    // Set messages
    //--------------------------------------------------------------------------
    function SetDgMessages($add_message = "", $update_message = "", $delete_message = ""){
        $this->dg_messages['add'] = $add_message;
        $this->dg_messages['update'] = $update_message;
        $this->dg_messages['delete'] = $delete_message;
    }

    //--------------------------------------------------------------------------
    // Set header names in columnar layout
    //--------------------------------------------------------------------------
    function SetHeadersInColumnarLayout($field_header = "", $field_value_header = ""){
        $this->field_header = $field_header;
        $this->field_value_header = $field_value_header;
    }
    
    //--------------------------------------------------------------------------
    // Write css class
    //--------------------------------------------------------------------------
    function WriteCssClass(){
        if(!$this->is_css_class_written){
            $req_print = $this->GetVariable('print');

            echo "\n<!-- DataGrid CSS definitions - START -->";
            $this->SetMediaPrint();
            $this->DefineCssClass();
            // if we in Print Mode
            if($req_print == true){
                $this->rowColor[0] = "";
                $this->rowColor[1] = "";            
                $this->rowColor[2] = ""; // dark
                $this->rowColor[3] = ""; // light
                $this->rowColor[4] = ""; // row mouse over lighting
                $this->rowColor[5] = ""; // on mouse click
                $this->rowColor[6] = ""; // header (th main) column
                $this->rowColor[7] = ""; // selected row mouse over lighting
                echo "\n<!--[if IE]><link rel='stylesheet' type='text/css' href='".$this->directory."css/style_print_IE.css'><![endif]-->";            
                echo "\n<link rel='stylesheet' type='text/css' href='".$this->directory."css/style_print.css'>";            
            }else{
                echo "\n<!--[if IE]><link rel='stylesheet' type='text/css' href='".$this->directory."css/style_".$this->css_class."_IE.css'><![endif]-->";            
                echo "\n<link rel='stylesheet' type='text/css' href='".$this->directory."css/style_".$this->css_class.".css'>";            
            }
            echo "\n<!-- DataGrid CSS definitions - END -->\n\n";            
            $this->is_css_class_written = true;            
        }
    }


    //==========================================================================
    // PROTECTED MEMBER FUNCTIONS 
    //==========================================================================
    //--------------------------------------------------------------------------
    // Set unique names
    //--------------------------------------------------------------------------
    protected function SetUniquePrefix($unique_prefix = ""){
        $this->uniquePrefix = $unique_prefix;
        $this->unique_random_prefix = $this->GetRandomString("5");
    }

    //--------------------------------------------------------------------------
    // Set css class
    //--------------------------------------------------------------------------
    protected function DefineCssClass(){        
        if(strtolower($this->css_class) == "green"){
                $this->rowColor[0] = "#ffffff";   
                $this->rowColor[1] = "#e4f5ef";            
                $this->rowColor[2] = "#ffffff";
                $this->rowColor[3] = "#e4f5ef";
                $this->rowColor[4] = "#d4e5df";
                $this->rowColor[5] = "#d4e5df";
                $this->rowColor[6] = "#c6d7cf"; // header (th main) column
                $this->rowColor[7] = "#d4e5df"; // selected row mouse over lighting
                echo "\n<style type='text/css'>.resizable-textarea .grippie { BACKGROUND: url(".$this->directory."images/common/grippie.png) #ddd no-repeat center 2px; }</style>";                                
        }else if(strtolower($this->css_class) == "gray") {
                $this->rowColor[0] = "#f9f9f9";
                $this->rowColor[1] = "#f0f0f0";            
                $this->rowColor[2] = "#f0f0f0";
                $this->rowColor[3] = "#dedede";
                $this->rowColor[4] = "#FEFFE8";
                $this->rowColor[5] = "#FEFFE8";
                $this->rowColor[6] = "#dedede"; // header (th main) column
                $this->rowColor[7] = "#FEFFE8"; // selected row mouse over lighting
                echo "\n<style type='text/css'>.resizable-textarea .grippie { BACKGROUND: url(".$this->directory."images/common/grippie.png) #ddd no-repeat center 2px; }</style>";                
        }else if(strtolower($this->css_class) == "blue"){
                $this->rowColor[0] = "#f7f9fb";
                $this->rowColor[1] = "#ffffff";            
                $this->rowColor[2] = "#d9e3f1";
                $this->rowColor[3] = "#e4ecf7"; 
                $this->rowColor[4] = "#FEFFE8";
                $this->rowColor[5] = "#FEFFE8";
                $this->rowColor[6] = "#cdd9ea"; // header (th main) column
                $this->rowColor[7] = "#FEFFE8"; // selected row mouse over lighting
                echo "\n<style type='text/css'>.resizable-textarea .grippie { BACKGROUND: url(".$this->directory."images/common/grippie.png) #ddd no-repeat center 2px; }</style>";
        }else if(strtolower($this->css_class) == "pink"){
                 $this->rowColor[0] = "#F8F7EF";
                $this->rowColor[1] = "#F8F7EF";            
                $this->rowColor[2] = "#333333"; //edit td dark
                $this->rowColor[3] = "#F8F7EF"; //edit td light
                $this->rowColor[4] = "#e4e2d3";
                $this->rowColor[5] = "#E7E3C7";
                $this->rowColor[6] = "#FFCFB4"; // header (th main) column
                $this->rowColor[7] = "#e4e2d3"; // selected row mouse over lighting
                echo "\n<style type='text/css'>.resizable-textarea .grippie { BACKGROUND: url(".$this->directory."images/common/grippie.png) #ddd no-repeat center 2px; }</style>";
        }else{
                $this->rowColor[0] = "#fcfaf6";  
                $this->rowColor[1] = "#ffffff";            
                $this->rowColor[2] = "#ebeadb"; // dark
                $this->rowColor[3] = "#ebeadb"; // light
                $this->rowColor[4] = "#e2f3fc"; // row mouse over lighting 
                $this->rowColor[5] = "#fdfde7"; // on mouse click 
                $this->rowColor[6] = "#e2e0cb"; // header (th main) column
                $this->rowColor[7] = "#f9f9e3"; // selected row mouse over lighting
                echo "\n<style type='text/css'>.resizable-textarea .grippie { BACKGROUND: url(".$this->directory."images/common/grippie.png) #eee no-repeat center 2px; }</style>";                
        }        
    }

    //--------------------------------------------------------------------------
    // get DataSet
    //--------------------------------------------------------------------------
    protected function GetDataSet($fsort = "", $limit = "", $mode = "", $sort_field = "", $numeric_sort = false){
        $this->SetEncodingOnDatabase();

        // we need this stupid operation to get a total number of rows in our query
        $this->SetTotalNumberRows("", "", $mode);        

        // we need this stupid operation to change field's offset on field's name
        if(($numeric_sort == true) && ($sort_field != "")){
            $this->data_set = & $this->db_handler->query($this->SetSqlByDbType($this->sql, $fsort, " LIMIT 0, 1"));            
            $this->sql_sort = str_replace("ABS(".$sort_field.")", "ABS(".$this->GetFieldName($sort_field-1).")", $this->sql_sort);
        }

        if($limit == ""){
            $limit = $this->SetSqlLimitByDbType();
            $this->data_set = & $this->db_handler->query($this->SetSqlByDbType($this->sql, $fsort, $limit));
        }

        if($this->db_handler->isError($this->data_set) == 1){
            $this->is_error = true;
            $this->AddErrors();
        }

        $this->rows = $this->NumberRows();
        $this->columns = $this->NumberCols();
        
        if($this->debug){
            echo "<table width='".$this->tblWidth[$this->mode]."'><tr><td align='left' class='".$this->css_class."_class_error_message no_print' style='COLOR: #333333;'><b>search sql (".$this->StrToLower($this->lang['total']).": ".$this->rows.") </b>". $this->sql.$fsort." ".$limit."</td></tr></table><br>";
        }

        $this->row_lower = 0;
        $this->row_upper = $this->rows;

        $this->col_lower = 0;
        $this->col_upper = $this->columns;        
    }

    //--------------------------------------------------------------------------
    // ger ORDER BY fields list
    //--------------------------------------------------------------------------
    protected function GetOrderByList(){
        $orderByList = "";
        for($ind=0; $ind < count($this->default_sort_field); $ind++){
            if($ind != 0) $orderByList .= ",";
            $orderByList .= " ".$this->default_sort_field[$ind]." ".$this->default_sort_type[$ind];
        }
        return $orderByList;
    }

    //--------------------------------------------------------------------------
    // perform security check from a Hack Attacks
    //--------------------------------------------------------------------------
    protected function SecurityCheck(){
        // check rid variable
        $req_rid = $this->GetVariable('rid');
        if(eregi("'", $req_rid) || eregi('"', $req_rid) || eregi("%27", $req_rid) || eregi("%22", $req_rid)){
            return false;
        }
        // check query string
        $query_string = strtolower(rawurldecode($_SERVER['QUERY_STRING']));
        $bad_string = array("%20union%20", "/*", "*/union/*", "+union+", "load_file", "outfile", "document.cookie", "onmouse", "<script", "<iframe", "<applet", "<meta", "<style", "<form", "<img", "<body", "<link", "_GLOBALS", "_REQUEST", "_GET", "_POST", "include_path", "prefix", "http://", "https://", "ftp://", "smb://" );
        foreach ($bad_string as $string_value){
            if (strstr($query_string, $string_value )){
                return false;
            }
        }
        return true;
    }    

    //--------------------------------------------------------------------------
    // set encoding and collation on database
    //--------------------------------------------------------------------------
    protected function SetEncodingOnDatabase(){
        $sql_variables = array(
                'character_set_client'  =>$this->encoding,
                'character_set_server'  =>$this->encoding,
                'character_set_results' =>$this->encoding,
                'character_set_database'=>$this->encoding,
                'character_set_connection'=>$this->encoding,
                'collation_server'      =>$this->collation,
                'collation_database'    =>$this->collation,
                'collation_connection'  =>$this->collation
        );
        foreach($sql_variables as $var => $value){
            $sql = "SET $var=$value;";
            $this->db_handler->query($sql);
        }        
    }

    //--------------------------------------------------------------------------
    // table drawing functions 
    //--------------------------------------------------------------------------
    protected function ShowCaption() {
        echo ($this->caption != "") ? "<div class='".$this->css_class."_class_caption'>". $this->caption ."</div><p></p>".chr(13) : "";
    }

    protected function TblOpen($style=""){
        if($this->scrolling_option == true) {
            $width = ($this->mode == "view") ?  "100%" : $this->tblWidth[$this->mode];
        }else{
            $width = $this->tblWidth[$this->mode];
        }
        $horizontal_align = ($this->tblAlign[$this->mode] == "center") ? "margin-left: auto; margin-right: auto;" : "";
        echo "<table dir='".$this->direction."' class='".$this->css_class."_class_table' style='".$horizontal_align."' width='".$width."' ".$style.">".chr(13);
        echo $this->TbodyOpen();
    }    

    protected function TblClose(){
        echo $this->TbodyClose();        
        echo "</table>".chr(13);
    }

    protected function ScrollDivOpen(){
        if($this->scrolling_option == true){
            echo "<center><div style='TEXT-ALIGN:center; PADDING:0px; WIDTH:".$this->scrolling_width."; HEIGHT:".$this->scrolling_height."; overflow:auto;'>";
            echo chr(13);
        }
    }

    protected function ScrollDivClose(){
        if($this->scrolling_option == true){        
            echo "</div></center>"; echo chr(13);
        }
    }

    protected function HideDivOpen(){
        $req_onSUBMIT_FILTER = $this->GetVariable('_ff_onSUBMIT_FILTER');
        if(($this->hide_grid_before_serach == true) && !($req_onSUBMIT_FILTER != "")){            
            echo "<div style='display: none;'>"; echo chr(13);
        }        
    }

    protected function HideDivClose(){
        $req_onSUBMIT_FILTER = $this->GetVariable('_ff_onSUBMIT_FILTER');        
        if(($this->hide_grid_before_serach == true) && !($req_onSUBMIT_FILTER != "")){            
            echo "</div>"; echo chr(13);
        }        
    }

    protected function TbodyOpen() { echo "<tbody>".chr(13);  }    
    protected function TbodyClose(){ echo "</tbody>".chr(13); }
    
    protected function RowOpen($id, $rowColor = "", $height=""){
        $req_print = $this->GetVariable('print');
        $text = "<tr class='class_tr' style='background-color: ".$rowColor.";' id='".$this->uniquePrefix."row_".$id."' ";       
        if($height != "") { $text .= "height='".$height."' "; };
        if($req_print != true){
            if($this->row_highlighting_allowed){
                $text .= " onclick=\"onMouseClickRow('".$this->uniquePrefix."','".$id."','".$this->rowColor[5]."', '".$this->rowColor[1]."', '".$this->rowColor[0]."');\" ";
                $text .= " onmouseover=\"onMouseOverRow('".$this->uniquePrefix."','".$id."','".$this->rowColor[4]."', '".$this->rowColor[7]."');\" ";
                $text .= " onmouseout=\"onMouseOutRow('".$this->uniquePrefix."','".$id."','".$rowColor."','".$this->rowColor[5]."');\" ";
            }            
        }else{
            $text .= " ";
        }
        $text .= ">".chr(13);
        echo $text;        
    }
    
    protected function RowClose(){
        echo "</tr>".chr(13);
    }
    
    protected function MainColOpen($align='left', $colSpan=0, $wrap='', $width='', $class='', $style=''){
        if($class == '') $class = $this->css_class."_class_th";
        $class_align = ($align == "") ? "" : " class_".$align;
        $wrap = ($wrap == '') ? $this->wrap : $wrap;        
        $text = "<th class='".$class.$class_align." ";
        $text .= ($wrap == 'nowrap') ? " class_nowrap" : "";
        $text .= "' "; // close css class quotation
        $text .= "style=' ";
        $text .= " background-color:".$this->rowColor[6]."; ";
        $text .= ($width !== '')? " width: ".$width.";" : "";        
        $text .= "' "; // close css style quotation
        $text .= ($this->mode != "edit") ? " onmouseover=\"bgColor='".$this->rowColor[3]."';\" onmouseout=\"bgColor='".$this->rowColor[6]."';\"" : "";
        $text .= ($colSpan != 0) ? " colspan='$colSpan'" : "";        
        $text .= ($style != '') ? " $style" : "";
        $text .= ">";
        echo $text;                
    }
    
    protected function MainColClose(){
        echo "</th>".chr(13);
    }   
    
    protected function ColOpen($align='left', $colSpan=0, $wrap='', $bgcolor='', $class_td='', $width='', $style=''){
        if($class_td == '') $class_td = $this->css_class."_class_td";
        $req_print = $this->GetVariable('print');
        $wrap = ($wrap == '') ? $this->wrap : $wrap;
        $class_align = ($align == "") ? "" : " class_".$align;
        $text = "<td class='".$class_td.$class_align." ";
        $text .= ($wrap == 'nowrap') ? " class_nowrap" : "";
        $text .= "' "; // close css class quotation
        $text .= "style=' ";
        $text .= ($width !== '')? " width: ".$width.";" : "";
        $text .= ($bgcolor !== '')? " background-color: ".$bgcolor.";" : "";        
        $text .= "' "; // close css style quotation
        $text .= ($colSpan != 0) ? " colspan='$colSpan'" : "";
        $text .= ($style != '') ? " $style" : "";
        $text .= ">";
        echo $text;                
    }
    
    protected function ColClose(){
        echo "</td>".chr(13);
    }
    
    protected function EmptyRow(){
        $this->RowOpen("","");
        $this->ColOpen();$this->ColClose();
        $this->RowClose();                              
    }

    //--------------------------------------------------------------------------
    // draw Control Panel
    //--------------------------------------------------------------------------
    protected function DrawControlPanel(){       
        $req_print  = $this->GetVariable('print');
        $req_export = $this->GetVariable('export');
        $req_mode   = $this->GetVariable('mode');        
        $myRef_window = $this->uniquePrefix."myRef";
        
        if($this->filtering_allowed || $this->exporting_allowed || $this->printing_allowed){
            $margin_bottom = ($this->layout_type == "edit") ? "margin-bottom: 7px;" : "margin-bottom: 5px;";
            echo "<table border='0' id='printTbl' style='margin-left: auto; margin-right: auto; $margin_bottom' width='".$this->tblWidth[$this->mode]."' cellspacing='1' cellpadding='1'>";
            echo "<tr>";
            echo "<td align='left'>";
            if($this->mode == "edit"){
                echo "<label class='".$this->css_class."_class_label'>".$this->lang['required_fields_msg']."</label>";
            }
            echo "</td>";        
            if($this->filtering_allowed && (($this->mode != "edit") && ($this->mode != "details"))){
                echo "<td align='right' class='class_nowrap' style='width: 20px;'>";
                $hide_display = "";
                $unhide_display = "display: none; ";            
                if(isset($_COOKIE[$this->uniquePrefix.'hide_search'])) {
                    if($_COOKIE[$this->uniquePrefix.'hide_search'] == 1){    
                        $this->hide_display = "display: none;";
                        $hide_display = "display: none; ";
                        $unhide_display = "";                    
                    }else{
                        $this->hide_display = "";
                        $hide_display = "";
                        $unhide_display = "display: none; ";                    
                    }
                }
                if($req_print != true){
                    echo "<a id='".$this->uniquePrefix."a_hide' style='cursor:pointer; ".$hide_display."' onClick=\"return hideUnHideFiltering('hide', '".$this->uniquePrefix."');\"><img src='".$this->directory."images/".$this->css_class."/search_hide_b.gif' onmouseover='this.src=\"".$this->directory."images/".$this->css_class."/search_hide_r.gif\"' onmouseout='this.src=\"".$this->directory."images/".$this->css_class."/search_hide_b.gif\"' alt='".$this->lang['hide_search']."' title='".$this->lang['hide_search']."'></a>";
                    echo "<a id='".$this->uniquePrefix."a_unhide' style='cursor:pointer; ".$unhide_display."' onClick=\"return hideUnHideFiltering('unhide', '".$this->uniquePrefix."');\"><img src='".$this->directory."images/".$this->css_class."/search_unhide_b.gif' onmouseover='this.src=\"".$this->directory."images/".$this->css_class."/search_unhide_r.gif\"' onmouseout='this.src=\"".$this->directory."images/".$this->css_class."/search_unhide_b.gif\"' alt='".$this->lang['unhide_search']."' title='".$this->lang['unhide_search']."'></a>";
                }
                echo "</td>";
            }
            if($this->exporting_allowed){                
                if((($req_export == "") || ($req_print != true)) && ($req_print == "")){
                    if($this->exporting_types["excel"] == true){
                        echo "<td align='right' style='width: 20px;'>";
                        echo "<a style='cursor:pointer;' onClick=\"".$myRef_window."=window.open(''+self.location+'".(($_SERVER['QUERY_STRING'] == "")?"?":"&amp;").$this->uniquePrefix."export=true&amp;".$this->uniquePrefix."export_type=csv','ExportToExcel','left=100,top=100,width=540,height=360,toolbar=0,resizable=0,location=0,scrollbars=1');".$myRef_window.".focus();\" class='".$this->css_class."_class_a'>";
                        echo "<img src='".$this->directory."images/".$this->css_class."/excel_b.gif'  onmouseover='this.src=\"".$this->directory."images/".$this->css_class."/excel_r.gif\"' onmouseout='this.src=\"".$this->directory."images/".$this->css_class."/excel_b.gif\"' alt='".$this->lang['export_to_excel']."' title='".$this->lang['export_to_excel']."'></a>";
                        echo "</td>";                            
                    }
                    if($this->exporting_types["pdf"] == true){
                        echo "<td align='right' style='width: 20px;'>";
                        echo "<a style='cursor:pointer;' onClick=\"".$myRef_window."=window.open(''+self.location+'".(($_SERVER['QUERY_STRING'] == "")?"?":"&amp;").$this->uniquePrefix."export=true&amp;".$this->uniquePrefix."export_type=pdf','ExportToPdf','left=100,top=100,width=540,height=360,toolbar=0,resizable=0,location=0,scrollbars=1');".$myRef_window.".focus();\" class='".$this->css_class."_class_a'>";
                        echo "<img src='".$this->directory."images/".$this->css_class."/pdf.jpg'  onmouseover='this.src=\"".$this->directory."images/".$this->css_class."/pdf.jpg\"' onmouseout='this.src=\"".$this->directory."images/".$this->css_class."/pdf.jpg\"' alt='".$this->lang['export_to_pdf']."' title='".$this->lang['export_to_pdf']."'></a>";
                        echo "</td>";                            
                    }
                    if($this->exporting_types["xml"] == true){
                        echo "<td align='right' style='width: 20px;'>";
                        echo "<a style='cursor:pointer;' onClick=\"".$myRef_window."=window.open(''+self.location+'".(($_SERVER['QUERY_STRING'] == "")?"?":"&amp;").$this->uniquePrefix."export=true&amp;".$this->uniquePrefix."export_type=xml','ExportToXml','left=100,top=100,width=540,height=360,toolbar=0,resizable=0,location=0,scrollbars=1');".$myRef_window.".focus();\" class='".$this->css_class."_class_a'>";
                        echo "<img src='".$this->directory."images/".$this->css_class."/xml_b.png'  onmouseover='this.src=\"".$this->directory."images/".$this->css_class."/xml_r.png\"' onmouseout='this.src=\"".$this->directory."images/".$this->css_class."/xml_b.png\"' alt='".$this->lang['export_to_xml']."' title='".$this->lang['export_to_xml']."'></a>";
                        echo "</td>";                                                        
                    }
                }else{
                    echo "<td align='right' style='width: 20px;'></td>";        
                }                
            }
            if($this->printing_allowed){
                if(($req_export == "") && ($req_print != true)){
                    echo "<td align='right' style='width: 20px;'><a style='cursor:pointer;' onClick=\"".$myRef_window."=window.open(''+self.location+'".(($_SERVER['QUERY_STRING'] == "")?"?":"&").$this->uniquePrefix."print=true','PrintableView','left=20,top=20,width=840,height=630,toolbar=0,menubar=0,resizable=0,location=0,scrollbars=1');".$myRef_window.".focus()\" class='".$this->css_class."_class_a'><img src='".$this->directory."images/".$this->css_class."/print_b.gif' onmouseover='this.src=\"".$this->directory."images/".$this->css_class."/print_r.gif\"' onmouseout='this.src=\"".$this->directory."images/".$this->css_class."/print_b.gif\"' alt='".$this->lang['printable_view']."' title='".$this->lang['printable_view']."'></a></td>";
                }else{
                    echo "<td align='right'><a style='cursor:pointer; ' onClick='window:print();' class='".$this->css_class."_class_a no_print'  title='".$this->lang['print_now_title']."'>".$this->lang['print_now']."</a></td>";
                }
            }
            if($this->filtering_allowed && ($this->mode == "view") && ($req_mode != "update") && ($req_mode != "delete")){
                if($req_print != true){                
                    echo "<td align='right' style='width: 20px;'><a style='cursor:pointer;' onClick='document.location.href=self.location;' class='".$this->css_class."_class_a'><img src='".$this->directory."images/".$this->css_class."/recycle.gif' alt='".$this->lang['refresh_page']."' title='".$this->lang['refresh_page']."'></a>";
                }
            }        
            echo "</tr>";
            echo "</table>";
        }
    }

    //--------------------------------------------------------------------------
    // Export Dispatcher 
    //--------------------------------------------------------------------------    
    protected function ExportTo(){
        $req_export  = $this->GetVariable('export');
        $export_type = $this->GetVariable('export_type');
        
        if($req_export == true){
            if($export_type == "pdf"){
                $this->ExportToPdf();
            }else if($export_type == "xml"){
                $this->ExportToXml();    
            }else{ // csv
                $this->ExportToCsv();                
            }
        }
    }

    //--------------------------------------------------------------------------
    // Export to CSV (if you change export file name - change file name length in download.php)
    //--------------------------------------------------------------------------    
    protected function ExportToCsv(){
        // Let's make sure the we create the file first
        $this->req_page_size = (isset($_REQUEST[$this->uniquePrefix.'page_size']))?$_REQUEST[$this->uniquePrefix.'page_size']:$this->req_page_size;
        $fe = fopen($this->exporting_directory."export.csv", "w+");
        if($fe){           
            $somecontent = "";
            if($this->layouts[$this->layout_type] == "0"){
                $type = "tabular";
            }else if($this->layouts[$this->layout_type] == "1"){
                $type = "columnar";
            }           
            if($type == "tabular"){
                // fields headers
                for($c_sorted = $this->col_lower; $c_sorted < count($this->sorted_columns); $c_sorted++){
                    // get current column's index (offset)
                    $c = $this->sorted_columns[$c_sorted];
                    $field_name = $this->GetFieldName($c);
                    if($this->CanViewField($field_name)){
                        $somecontent .= ucfirst($this->GetHeaderName($field_name, true));
                        if($c_sorted < count($this->sorted_columns) - 1) $somecontent .= ",";                                   
                    }
                }
                $somecontent .= "\n";                                           
                // fields data
                for($r = $this->row_lower; (($r >=0 && $this->row_upper >=0) && ($r < $this->row_upper) && ($r < ($this->row_lower + $this->req_page_size))); $r++){                  
                    $row = $this->data_set->fetchRow();               
                    for($c_sorted = $this->col_lower; $c_sorted < count($this->sorted_columns); $c_sorted++){
                        // get current column's index (offset)
                        $c = $this->sorted_columns[$c_sorted];
                        $field_name = $this->GetFieldName($c);
                        if($this->CanViewField($field_name)){
                            $somecontent .= str_replace(",", "",$row[$c]);
                            if($c_sorted < count($this->sorted_columns) - 1) $somecontent .= ",";                       
                        }
                    }
                    $somecontent .= "\n";               
                }
            }else{
                $row = $this->data_set->fetchRow();               
                for($c_sorted = $this->col_lower; $c_sorted < count($this->sorted_columns); $c_sorted++){
                    // get current column's index (offset)
                    $c = $this->sorted_columns[$c_sorted];
                    $field_name = $this->GetFieldName($c);
                    if($this->CanViewField($field_name)){
                        $somecontent .= ucfirst($this->GetHeaderName($field_name, true));
                        $somecontent .= ",";
                        $somecontent .= str_replace(",", "",$row[$c]);
                        if($c_sorted < count($this->sorted_columns) - 1) $somecontent .= "\n";               
                    }
                }
                $somecontent .= "\n";                                           
            }
            // write some content to the opened file.
            if (fwrite($fe, $somecontent) == FALSE) {
                echo $this->lang['file_writing_error']." (export.csv)";
                exit;
            }                       
            fclose($fe);
            echo $this->ExportDownloadFile("export.csv");
        }else{
            echo "<label class='".$this->css_class."_class_error_message no_print'>".$this->lang['file_opening_error']."</lable>";
            exit;
        }       
    }
    
    //---------------------------------------------------
    // Export to PDF (if you change export file name - change file name length in download.php)
    //---------------------------------------------------
    protected function ExportToPdf($type = "tabular") {
        // Let's make sure the we create the file first
        $this->req_page_size = (isset($_REQUEST[$this->uniquePrefix.'page_size']))?$_REQUEST[$this->uniquePrefix.'page_size']:$this->req_page_size;
       
        $newcontent = array();
        $somecontent = "";
        
        // fields headers
        for($c_sorted = $this->col_lower; $c_sorted < count($this->sorted_columns); $c_sorted++){
            // get current column's index (offset)
            $c = $this->sorted_columns[$c_sorted];
            $field_name = $this->GetFieldName($c);
            if($this->CanViewField($field_name)){
                $somecontent .= ucfirst($this->GetHeaderName($field_name, true));
                if($c_sorted < count($this->sorted_columns) - 1) $somecontent .= "\t";                                    
            }
        }
        $newcontent[] = $somecontent;
        $somecontent = "";
        
        // fields data
        for($r = $this->row_lower; (($r >=0 && $this->row_upper >=0) && ($r < $this->row_upper) && ($r < ($this->row_lower + $this->req_page_size))); $r++){                   
            $row = $this->data_set->fetchRow();                
            for($c_sorted = $this->col_lower; $c_sorted < count($this->sorted_columns); $c_sorted++){
                // get current column's index (offset)
                $c = $this->sorted_columns[$c_sorted];
                $field_name = $this->GetFieldName($c);
                if($this->CanViewField($field_name)){
                    $somecontent .= str_replace("\t", "",$row[$c]);
                    if($c_sorted < count($this->sorted_columns) - 1) $somecontent .= "\t";                        
                }
            }
            $somecontent .= "\n";
            $newcontent[] = $somecontent;
            $somecontent = "";            
        }
		
        // write some content to the opened file.
        define('FPDF_FONTPATH', $this->directory.'modules/fpdf/font/');
        include_once($this->directory.'modules/fpdf/fpdf.php');
        $pdf=new FPDF();
        $pdf->AddPage();
        $pdf->SetFont('Arial','B',16);
            
        for($i=0;$i<count($newcontent);$i++) {        
            $pdf->Text(10,($i*10)+10,$newcontent[$i]);
        }

        $output_path = ($this->exporting_directory != "") ? $this->exporting_directory : $this->directory;
        $pdf->Output($output_path."export.pdf", "");
        
        echo $this->ExportDownloadFile("export.pdf");
    }

    //--------------------------------------------------------------------------
    // Export to XML (if you change export file name - change file name length in download.php)
    //--------------------------------------------------------------------------    
    protected function ExportToXml(){
        // Let's make sure the we create the file first
        $this->req_page_size = (isset($_REQUEST[$this->uniquePrefix.'page_size']))?$_REQUEST[$this->uniquePrefix.'page_size']:$this->req_page_size;
        $fe = fopen($this->exporting_directory."export.xml", "w+");        
        if($fe){
            $somecontent = "<?xml version='1.0' encoding='UTF-8' ?>";                    
            // fields data
            $somecontent .= "<page>";            
            for($r = $this->row_lower; (($r >=0 && $this->row_upper >=0) && ($r < $this->row_upper) && ($r < ($this->row_lower + $this->req_page_size))); $r++){                   
                $row = $this->data_set->fetchRow();               
                $somecontent .= "<row".$r.">";
                for($c_sorted = $this->col_lower; $c_sorted < count($this->sorted_columns); $c_sorted++){
                    // get current column's index (offset)
                    $c = $this->sorted_columns[$c_sorted];
                    $field_name = $this->GetFieldName($c);
                    if($this->CanViewField($field_name)){
                        $header_name = $field_name;
                        $somecontent .= "<".$header_name.">";
                        $somecontent .= $row[$c];
                        $somecontent .= "</".$header_name.">";
                    }
                }
                $somecontent .= "</row".$r.">";
            }
            $somecontent .= "</page>";                        
        
            // write somecontent to the opened file.
            if (fwrite($fe, $somecontent) == FALSE) {
                echo $this->lang['file_writing_error']." (export.xml)";
                exit;
            }                        
            fclose($fe);
            echo $this->ExportDownloadFile("export.xml");
        }else{
            echo "<label class='".$this->css_class."_class_error_message no_print'>".$this->lang['file_opening_error']."</lable>";
            exit;
        }
    }

    //--------------------------------------------------------------------------
    // draw filtering
    //--------------------------------------------------------------------------
    protected function DrawFiltering(){
        $req_print = $this->GetVariable('print');
        $selSearchType = $this->GetVariable("_ff_selSearchType");
        $req_onSUBMIT_FILTER = $this->GetVariable('_ff_onSUBMIT_FILTER');        
        $cols = 0;
        
        if($this->filtering_allowed){
            $horizontal_align = ($this->tblAlign[$this->mode] == "center") ? "margin-left: auto; margin-right: auto;" : "";
            echo "<table id='".$this->uniquePrefix."searchset' style='".$horizontal_align." ".$this->hide_display."' width='".(($this->browser_name == "Firefox") ? "98%" : "100%" )."'><tr><td style='text-align: center;'>\n";
            if($req_print != true){
                echo "<fieldset class='".$this->css_class."_class_fieldset' dir='".$this->direction."' style='".$horizontal_align." width: ".$this->tblWidth['view'].";'>\n";
                echo "<legend class='".$this->css_class."_class_legend'>".$this->lang['search_d']."</legend>\n";
            }
            echo "<form name='frmFiltering".$this->uniquePrefix."' id='frmFiltering".$this->uniquePrefix."' action='' method='GET' style='MARGIN: 10px;'>\n";
            $this->SaveHttpGetVars();
            echo "<table class='".$this->css_class."_class_filter_table' border='0' id='filterTbl".$this->uniquePrefix."' style='margin-left: auto; margin-right: auto;' width='".$this->tblWidth[$this->mode]."' cellspacing='1' cellpadding='1'>\n";
            if($this->layouts['filter'] == "0") echo "<tr>\n";
            foreach($this->filter_fields as $fldName => $fldValue){
                $field_property_on_js_event = $this->GetFieldProperty($fldName, "on_js_event", "filter", "normal");
                $field_property_width = $this->GetFieldProperty($fldName, "width", "filter", "normal");
                $field_property_autocomplete = $this->GetFieldProperty($fldName, "autocomplete", "filter", "normal");
                $field_property_handler = $this->GetFieldProperty($fldName, "handler", "filter", "normal");
                $field_property_maxresults = $this->GetFieldProperty($fldName, "maxresults", "filter", "normal");
                $field_property_shownoresults = $this->GetFieldProperty($fldName, "shownoresults", "filter", "normal");
                if($field_property_shownoresults == "") $field_property_shownoresults = "false";
                $field_width = ($field_property_width != "") ? "width: ".$field_property_width.";" : "";                
                
                if($this->layouts['filter'] == "1") echo "<tr valign='middle'>\n";
                $fldValue_fields = explode(",", $fldValue['field']);
                $table_field_name = "".$fldValue['table']."_".$fldValue_fields[0];///del $fldValue['field'];
                if(isset($_REQUEST[$this->uniquePrefix."_ff_".$table_field_name]) AND ($_REQUEST[$this->uniquePrefix."_ff_".$table_field_name] != "")){
                    $filter_field_value = stripcslashes($_REQUEST[$this->uniquePrefix."_ff_".$table_field_name]);    
                }else{
                    $filter_field_value = "";  
                }
                $filter_field_value_html = str_replace('"', "&#034;", $filter_field_value); // double quotation mark
                $filter_field_value_html = str_replace("'", "&#039;", $filter_field_value_html); // single quotation mark                        
                
                $filter_field_operator =  $table_field_name."_operator";                
                echo "<td align='";                
                if($this->layouts['filter'] == "1"){
                    echo ($this->direction == "rtl")?"left":"right"; echo "' style='width:50%;'>".$fldName."";
                    echo "</td><td>".$this->nbsp."</td><td>";
                    $cols +=3;
                }else if($this->layouts['filter'] == "0"){
                    echo ($this->direction == "rtl")?"center":"center"; echo "' >".$fldName."";
                    echo " ";
                    $cols +=1;
                }else {
                    echo ($this->direction == "rtl")?"left":"right"; echo "' style='width:50%;'>".$fldName."";
                    echo "</td>";
                    echo "<td>".$this->nbsp."</td>";
                    echo "<td>";
                    $cols +=2;
                }                
                if(isset($fldValue['show_operator']) && $fldValue['show_operator'] != false){
                    if($req_print != true){
                        if(isset($_REQUEST[$this->uniquePrefix."_ff_".$filter_field_operator]) && $_REQUEST[$this->uniquePrefix."_ff_".$filter_field_operator] != ""){
                            $filter_operator = $_REQUEST[$this->uniquePrefix."_ff_".$filter_field_operator];                            
                        }else if(isset($fldValue['default_operator']) && $fldValue['default_operator'] != ""){
                            $filter_operator = $fldValue['default_operator'];                            
                        }else{
                            $filter_operator = "=";
                        }
                        echo "<select class='".$this->css_class."_class_select' name='".$this->uniquePrefix."_ff_".$filter_field_operator."' id='".$this->uniquePrefix."_ff_".$filter_field_operator."'>";
                        echo "<option value='='"; echo ($filter_operator == "=")? "selected" : ""; echo ">".$this->lang['=']."</option>";
                        echo "<option value='&gt;'"; echo ($filter_operator == ">")? "selected" : ""; echo ">".$this->lang['>']."</option>";
                        echo "<option value='&lt;'"; echo ($filter_operator == "<")? "selected" : ""; echo ">".$this->lang['<']."</option>";                        
                        echo "<option value='like'"; echo ($filter_operator == "like")? "selected" : ""; echo ">".$this->lang['like']."</option>";
                        echo "<option value='like%'"; echo ($filter_operator == "like%")? "selected" : ""; echo ">".$this->lang['like%']."</option>";
                        echo "<option value='%like'"; echo ($filter_operator == "%like")? "selected" : ""; echo ">".$this->lang['%like']."</option>";
                        echo "<option value='%like%'"; echo ($filter_operator == "%like%")? "selected" : ""; echo ">".$this->lang['%like%']."</option>";
                        echo "<option value='not like'"; echo ($filter_operator == "not like")? "selected" : ""; echo ">".$this->lang['not_like']."</option>";
                        echo "</select>";
                    }else{
                        echo (isset($_REQUEST[$this->uniquePrefix."_ff_".$filter_field_operator])) ? "[".$_REQUEST[$this->uniquePrefix."_ff_".$filter_field_operator]."]" : "";                        
                    }
                }else{
                    // set default operator
                    if(isset($fldValue['default_operator']) && $fldValue['default_operator'] != ""){
                        echo "<input type='hidden' name='".$this->uniquePrefix."_ff_".$filter_field_operator."' id='".$this->uniquePrefix."_ff_".$filter_field_operator."' value='".$fldValue['default_operator']."'>";
                        $filter_operator = $fldValue['default_operator'];
                    }else{
                        echo "<input type='hidden' name='".$this->uniquePrefix."_ff_".$filter_field_operator."' id='".$this->uniquePrefix."_ff_".$filter_field_operator."' value='='>";
                        $filter_operator = "=";
                    }                    
                }
                if($this->layouts['filter'] == "1"){
                    echo "</td>\n<td>".$this->nbsp."</td>\n";                    
                    echo "<td style='width:50%;' align='"; echo ($this->direction == "rtl")?"right":"left"; echo "'>";
                    $cols +=2;
                }else if($this->layouts['filter'] == "0"){
                    echo "<br>";   
                }else {
                    echo "</td>\n<td>".$this->nbsp."</td>\n";                    
                    echo "<td  style='width:50%;' align='"; echo ($this->direction == "rtl")?"right":"left"; echo "'>";
                    $cols +=2;
                }
                $filter_field_type = (isset($fldValue['type'])) ? $fldValue['type'] : "" ;
                if($req_print != true){
                    switch($filter_field_type){
                        case "textbox":
                            $fldValue_fields = str_replace(" ", "", $fldValue['field']);
                            $fldValue_fields = explode(",", $fldValue_fields);
                            $count = 0;
                            $onchange_filter_field = "";
                            foreach($fldValue_fields as $fldValue_field){
                                if($count++ > 0){ $onchange_filter_field .= "document.getElementById(\"".$this->uniquePrefix."_ff_".$fldValue['table']."_".$fldValue_field."\").value="; }
                            }
                            $count = 0;
                            foreach($fldValue_fields as $fldValue_field){
                                if($count++ == 0){

                                    echo "\n<input class='".$this->css_class."_class_textbox' style='".$field_width."' type='text' value='".$filter_field_value_html."' name='".$this->uniquePrefix."_ff_".$fldValue['table']."_".$fldValue_field."' id='".$this->uniquePrefix."_ff_".$fldValue['table']."_".$fldValue_field."' onchange='".$onchange_filter_field."this.value;' ".$field_property_on_js_event.">";
                                    if(($field_property_autocomplete == "true") || ($field_property_autocomplete === true)){
                                        echo "\n<script type='text/javascript'>\n<!--\n";
                                        echo "var options = {";
                                        echo "   script: '".$this->directory.$field_property_handler."?json=true&limit=".intval($field_property_maxresults)."&',";
                                        echo "   varname: 'input',";
                                        echo "   json: true,";                                        
                                        echo "   shownoresults: ".$field_property_shownoresults.",";
                                        echo "   maxresults: ".intval($field_property_maxresults);
                                        //callback: function (obj) { document.getElementById('testid').value = obj.id; }
                                        echo "};";
                                        echo "var as_json = new bsn.AutoSuggest('".$this->uniquePrefix."_ff_".$fldValue['table']."_".$fldValue_field."', options);";
                                        echo "\n//-->\n</script>\n";                                    
                                    }
                                }else{
                                    $filter_field_operator =  $fldValue['table']."_".$fldValue_field."_operator";
                                    echo "\n<input type='hidden' name='".$this->uniquePrefix."_ff_".$fldValue['table']."_".$fldValue_field."' id='".$this->uniquePrefix."_ff_".$fldValue['table']."_".$fldValue_field."' value='".$filter_field_value_html."'>";                                    
                                    echo "\n<input type='hidden' name='".$this->uniquePrefix."_ff_".$filter_field_operator."' id='".$this->uniquePrefix."_ff_".$filter_field_operator."' value='".$filter_operator."'>";
                                }
                            }                        
                            break;
                        case "dropdownlist":
                            echo "<select class='".$this->css_class."_class_select' style='".$field_width."' name='".$this->uniquePrefix."_ff_".$fldValue['table']."_".$fldValue['field']."' id='".$this->uniquePrefix."_ff_".$fldValue['table']."_".$fldValue['field']."' ".$field_property_on_js_event.">";
                            echo "<option value=''>-- ".$this->lang['any']." --</option>";
                            if(is_array($fldValue['source'])){
                                foreach($fldValue['source'] as $val => $opt){
                                    echo "<option value='".$val."' ";
                                    if($filter_field_value != ""){
                                        if($filter_field_value == $val) echo "selected";
                                    }
                                    echo ">".$opt."</option>";
                                }
                            }else{
                                if (isset($fldValue['condition']) && trim($fldValue['condition']) !== "") {
                                    $where = $fldValue['condition'];        
                                }else{
                                    $where = " 1=1 ";
                                }
                                if(isset($fldValue['show']) && trim($fldValue['show']) !== ""){
                                    $sql = "SELECT DISTINCT ".$fldValue['field'].", ".$fldValue['show']." FROM ".$fldValue['table']." WHERE ".$where." ORDER BY ".$fldValue['field']." ".(($this->strToLower((isset($fldValue['order']) ? $fldValue['order'] : "")) == "desc")?"DESC":"ASC")." ";
                                    $this->db_handler->setFetchMode(DB_FETCHMODE_ASSOC);
                                    $dSet = $this->db_handler->query($sql);
                                    while($row = $dSet->fetchRow()){
                                        $ff_name = $fldValue['show'];
                                        if (eregi(" as ", strtolower($ff_name))) $ff_name = substr($ff_name, strpos(strtolower($ff_name), " as ")+4);
                                        if($row[$fldValue['field']] === $filter_field_value){
                                            if($filter_field_value !=""){
                                                echo "<option selected value='".$row[$fldValue['field']]."'>".$row[$ff_name]."</option>";
                                            }else{
                                                echo "<option value='".$row[$fldValue['field']]."'>".$row[$ff_name]."</option>";
                                            }
                                        }else{
                                            echo "<option value='".$row[$fldValue['field']]."'>".$row[$ff_name]."</option>";
                                        }
                                    }
                                } else {
                                    $sql = "SELECT DISTINCT ".$fldValue['field']." FROM ".$fldValue['table']." WHERE ".$where." ORDER BY ".$fldValue['field']." ".(($this->strToLower((isset($fldValue['order']) ? $fldValue['order'] : "")) == "desc")?"DESC":"ASC")." ";
                                    $this->db_handler->setFetchMode(DB_FETCHMODE_ASSOC);
                                    $dSet = $this->db_handler->query($sql);
                                    while($row = $dSet->fetchRow()){
                                        if($row[$fldValue['field']] === $filter_field_value){
                                            if($filter_field_value !=""){
                                                echo "<option selected value='".$row[$fldValue['field']]."'>".$row[$fldValue['field']]."</option>";
                                            }else{
                                                echo "<option value='".$row[$fldValue['field']]."'>".$row[$fldValue['field']]."</option>";
                                            }
                                        }else{
                                            echo "<option value='".$row[$fldValue['field']]."'>".$row[$fldValue['field']]."</option>";
                                        }
                                    }
                                }
                            }   
                            echo "</select>";
                            break;
                        case "calendar":
                            $fldValue_fields = str_replace(" ", "", $fldValue['field']);
                            $fldValue_fields = explode(",", $fldValue_fields);
                            $count = 0;
                            $onchange_filter_field = "";
                            foreach($fldValue_fields as $fldValue_field){
                                if($count++ > 0){ $onchange_filter_field .= "document.getElementById(\"".$this->uniquePrefix."_ff_".$fldValue['table']."_".$fldValue_field."\").value="; }
                            }
                            $count = 0;
                            foreach($fldValue_fields as $fldValue_field){
                                if($count++ == 0){
                                    echo "\n<input class='".$this->css_class."_class_textbox' style='".$field_width."' type='text' value='".$filter_field_value."' name='".$this->uniquePrefix."_ff_".$fldValue['table']."_".$fldValue_field."' id='".$this->uniquePrefix."_ff_".$fldValue['table']."_".$fldValue_field."' onchange='".$onchange_filter_field."this.value;' ".$field_property_on_js_event.">";
                                }else{
                                    $filter_field_operator =  $fldValue['table']."_".$fldValue_field."_operator";
                                    echo "\n<input type='hidden' name='".$this->uniquePrefix."_ff_".$fldValue['table']."_".$fldValue_field."' id='".$this->uniquePrefix."_ff_".$fldValue['table']."_".$fldValue_field."' value='".$filter_field_value."'>";                                    
                                    echo "\n<input type='hidden' name='".$this->uniquePrefix."_ff_".$filter_field_operator."' id='".$this->uniquePrefix."_ff_".$filter_field_operator."' value='".$filter_operator."'>";
                                }
                            }
                            echo "<a class='".$this->css_class."_class_a2' title='' href=\"javascript: openCalendar('".$this->directory."','', 'frmFiltering".$this->uniquePrefix."', '', '".$this->uniquePrefix."_ff_".$fldValue['table']."_".$fldValue_field."', 'date')\"><img src='".$this->directory."images/".$this->css_class."/cal.gif' alt='".$this->lang['set_date']."' title='".$this->lang['set_date']."' align='top' style='border:0px; MARGIN:3px;margin-left:6px;margin-right:6px;'></a>".$this->nbsp;
                            break;
                        default:
                            echo "\n<input class='".$this->css_class."_class_textbox' type='text' value='".$filter_field_value_html."' name='".$this->uniquePrefix."_ff_".$fldValue['table']."_".$fldValue['field']."' id='".$this->uniquePrefix."_ff_".$fldValue['table']."_".$fldValue['field']."'>";                                        
                            break;                                       
                    }                                    
                }else{
                    echo $filter_field_value;                    
                }
                echo "</td>\n";
                //value='$_POST[$fldValue]'
                if($this->layouts['filter'] == "1") echo "</tr>\n";                
            }
            if($this->layouts['filter'] == "0") echo "</tr>\n";
            echo "<tr><td ".(($cols > 0) ? "colspan='".$cols."'" : "")." style='height:6px;' align='center'></td></tr>\n";
            echo "<tr><td ".(($cols > 0) ? "colspan='".$cols."'" : "")." align='center'>";
            if(count($this->filter_fields) > 1){
                if($this->show_search_type){ echo $this->lang['search_type'].":&nbsp;&nbsp;"; }
                if($req_print != true){
                    if($this->show_search_type){
                        echo "<select class='".$this->css_class."_class_select' name='".$this->uniquePrefix."_ff_"."selSearchType' id='".$this->uniquePrefix."_ff_"."selSearchType'>";
                        echo "<option value='0' "; echo (($selSearchType != "") && ($selSearchType == 0)) ? "selected" : ""; echo ">".$this->lang['and']."</option>";
                        echo "<option value='1' "; echo ($selSearchType == 1) ? "selected" : ""; echo ">".$this->lang['or']."</option>";            
                        echo "</select>&nbsp;&nbsp;&nbsp;";                        
                    }else{
                        echo "<input type='hidden' name='".$this->uniquePrefix."_ff_"."selSearchType' id='".$this->uniquePrefix."_ff_"."selSearchType' value='0'>";
                    }                    
                }else{
                    if(($selSearchType != "") && ($selSearchType == 0)){
                        echo "[and]";
                    }else if($selSearchType == 1){
                        echo "[or]"; 
                    }else {
                        echo "[none]";
                    }
                }
            }
            if($req_print != true){
                if($req_onSUBMIT_FILTER != ""){
                    $curr_url = $this->CombineUrl("view", "", "&");
                    $this->SetUrlString($curr_url, "", "sorting", "paging");                            
                    echo "<input class='".$this->css_class."_class_button' type='button' value='".$this->lang['reset']."' onClick='document.location.href=\"".$this->HTTP_URL.$curr_url."\"'>&nbsp;";
                }
                echo "<input class='".$this->css_class."_class_button' type='submit' name='".$this->uniquePrefix."_ff_"."onSUBMIT_FILTER' id='".$this->uniquePrefix."_ff_"."onSUBMIT_FILTER' value='".$this->lang['search']."'>";
            }
            echo "</td></tr>\n";            
            $this->TblClose();  
            echo "</form>\n";
            if($req_print != true){
                echo "</fieldset>\n";
            }
            echo "</td></tr></table>\n";
        }               
    }

    //--------------------------------------------------------------------------
    // draw in customized layout
    //--------------------------------------------------------------------------
    protected function DrawCustomized(){
        $req_print   = $this->GetVariable('print');
        $req_mode    = $this->GetVariable('mode');
       
        $this->ExportTo();
        $this->ShowCaption($this->caption);
        $this->DrawControlPanel();
        
        if(($this->mode != "edit") && ($this->mode != "details")) $this->DrawFiltering();   
        if(($req_mode !== "add") || ($req_mode == "")) $this->PagingFirstPart();  
        $this->DisplayMessages();
        if($this->paging_allowed) $this->PagingSecondPart($this->upper_paging, false, true, "Upper");
        if($this->row_lower == $this->row_upper) echo "<br>";        

        echo "<div id='".$this->unique_random_prefix."loading_image'><br><table style='margin-left: auto; margin-right: auto;'><tr><td valign='middle'>".$this->lang['loading_data']."</td><td valign='middle'><img src='".$this->directory."images/common/loading.gif' alt='".$this->lang['loading_data']."'></table></div>";                
        // draw hide DG open div 
        $this->HideDivOpen();

       
        for($r = $this->row_lower; (($r >=0 && $this->row_upper >=0) && ($r < $this->row_upper) && ($r < ($this->row_lower + $this->req_page_size))); $r++){
            // draw column data
            $row = $this->data_set->fetchRow();
            $template = $this->templates[$this->layout_type];
            for($c_sorted = $this->col_lower; $c_sorted < count($this->sorted_columns); $c_sorted++){
                // get current column's index (offset)
                $c = $this->sorted_columns[$c_sorted];
                if($this->IsForeignKey($this->GetFieldName($c))){
                    $template = str_replace("{".$this->GetFieldName($c)."}", $this->GetForeignKeyInput($row[$this->GetFieldOffset($this->primary_key)], $this->GetFieldName($c), $row[$c], "view"), $template);
                }else{
                    $template = str_replace("{".$this->GetFieldName($c)."}", $this->GetFieldValueByType($row[$c], $c, $row), $template);
                }                                
            }
            echo $template;
        }
        
        // draw empty table       
        if($r == $this->row_lower){ $this->NoDataFound(); }
        $this->ScrollDivClose();        
        
        if($this->paging_allowed) $this->PagingSecondPart($this->lower_paging, true, true, "Lower");
        
        // draw hide DG close div 
        $this->HideDivClose();
        echo "<script type='text/javascript'>\n<!--\n document.getElementById('".$this->unique_random_prefix."loading_image').style.display='none'; \n//-->\n</script>";
        
    }
    
    //--------------------------------------------------------------------------
    // draw in tabular layout
    //--------------------------------------------------------------------------
    protected function DrawTabular(){
        $req_print   = $this->GetVariable('print');
        $req_mode    = $this->GetVariable('mode');
        $horizontal_align = ($this->tblAlign[$this->mode] == "center") ? "margin-left: auto; margin-right: auto;" : "";
       
        $this->ExportTo();
        $this->ShowCaption($this->caption);
        $this->DrawControlPanel();
        
        if($this->mode != "edit") $this->DrawFiltering();   
        if(($req_mode !== "add") || ($req_mode == "")) $this->PagingFirstPart();  
        $this->DisplayMessages();
        if($this->paging_allowed) $this->PagingSecondPart($this->upper_paging, false, true, "Upper");
        if($this->row_lower == $this->row_upper) echo "<br>";        

        //prepare summarize columns array
        foreach ($this->columns_view_mode as $key => $val){        
            $field_property_summarize = $this->GetFieldProperty($key, "summarize", "view");
            if(($field_property_summarize == "true") || ($field_property_summarize === true)){    
                $this->summarize_columns[$key] = 0;
            }
        }
        
        echo "<div id='".$this->unique_random_prefix."loading_image'><br><table style='margin-left: auto; margin-right: auto;'><tr><td valign='middle'>".$this->lang['loading_data']."</td><td valign='middle'><img src='".$this->directory."images/common/loading.gif' alt='".$this->lang['loading_data']."'></table></div>";                
        // draw hide DG open div 
        $this->HideDivOpen();

        // draw add link-button cell
        if(isset($this->modes['add'][$this->mode]) && $this->modes['add'][$this->mode] &&
           isset($this->modes['add']['show_add_button']) && ($this->modes['add']['show_add_button'] == "outside")){
            echo "<table dir='".$this->direction."' border='0' style='".$horizontal_align."' width='".$this->tblWidth[$this->mode]."'>";
            echo "<tr>";
            echo "<td align='".(($this->direction == "ltr") ? "left" : "right")."'><b>";
                $curr_url = $this->CombineUrl("add", "-1");
                $this->SetUrlString($curr_url, "filtering", "sorting", "paging");        
                $this->DrawModeButton("add", $curr_url, $this->lang['add_new'], $this->lang['add_new_record'], "add.gif", "\"javascript:document.location.href='".$this->HTTP_URL.$curr_url."';\"", false, "", "");                        
            echo "</b></td>";
            echo "</tr>";
            echo "</table>";
            $this->modes['add'][$this->mode] = false;
        }

        $this->ScrollDivOpen();
        $this->TblOpen();        
        
        // *** START DRAWING HEADERS -------------------------------------------
        $this->RowOpen("");

            // draw multi-row checkboxes header
            if(($this->multirow_allowed) && ($this->rows_total > 0)){                
                $this->ColOpen("center",0,"nowrap",$this->rowColor[0], $this->css_class."_class_td", "26px");
                echo $this->nbsp;
                $this->ColClose();
            }            
            
            // draw add link-button cell
            if(isset($this->modes['add'][$this->mode]) && $this->modes['add'][$this->mode]){            
                $curr_url = $this->CombineUrl("add", "-1");
                $this->SetUrlString($curr_url, "filtering", "sorting", "paging");
                $this->MainColOpen("center",0,"nowrap", "1%", $this->css_class."_class_th_normal");
                $this->DrawModeButton("add", $curr_url, $this->lang['add_new'], $this->lang['add_new_record'], "add.gif", "\"javascript:document.location.href='".$this->HTTP_URL.$curr_url."';\"", false, "", "");                        
                $this->MainColClose();
            }else{            
                if(isset($this->modes['edit'][$this->mode]) && $this->modes['edit'][$this->mode]){
                    $this->MainColOpen("center",0,"nowrap", "1%", $this->css_class."_class_th_normal"); echo $this->nbsp; $this->MainColClose();                
                }
            }
    
            if(($this->rows_numeration)){ 
                $this->MainColOpen("center",0,"nowrap", ""); echo $this->numeration_sign; $this->MainColClose();                
            }

            // draw column headers in add mode
            if(($this->rid == -1) && ($req_mode == "add")){
                foreach($this->columns_edit_mode as $key => $val){                    
                    if($this->GetFieldProperty($key, "type") != "hidden"){
                        $this->MainColOpen("center",0);
                        echo "<b>".ucfirst($this->GetHeaderName($key))."</b>";                        
                        $this->MainColClose();                        
                    }
                }
            }else{
                $req_sort_field    = $this->GetVariable('sort_field');
                $req_sort_field_by = $this->GetVariable('sort_field_by');
                $req_sort_type     = $this->GetVariable('sort_type');    
                if($req_sort_field){
                    $sort_img = (strtolower($req_sort_type) == "desc") ? $this->directory."images/".$this->css_class."/s_desc.png" : $this->directory."images/".$this->css_class."/s_asc.png" ;
                    $sort_img_back = (strtolower($req_sort_type) == "desc") ? $this->directory."images/".$this->css_class."/s_asc.png" : $this->directory."images/".$this->css_class."/s_desc.png" ;
                    $sort_alt = (strtolower($req_sort_type) == "desc") ? $this->lang['descending'] : $this->lang['ascending'] ;
                }
                if($this->mode === "view"){                
                    // draw column headers in view mode                    
                    for($c_sorted = $this->col_lower; $c_sorted < count($this->sorted_columns); $c_sorted++){
                        // get current column's index (offset)
                        $c = $this->sorted_columns[$c_sorted];
                        $field_name = $this->GetFieldName($c);
                        
                        $field_property_sort_by = $this->GetFieldProperty($field_name, "sort_by", "view");
                        $field_property_sort_type = $this->GetFieldProperty($field_name, "sort_type", "view");
                        if($field_property_sort_by != ""){
                            $sort_field_by = ($this->GetFieldOffset($field_property_sort_by)+1);                            
                        } else {
                            $sort_field_by = "";
                        };
                        
                        if($this->CanViewField($field_name)){
                            $field_property_wrap  = $this->GetFieldProperty($field_name, "wrap", "view", "lower", $this->wrap);
                            $field_property_width = $this->GetFieldProperty($field_name, "width", "view");

                            if($this->sorting_allowed && ($req_print != true) && $req_sort_field && ($c == ($req_sort_field -1))){ $th_css_class = $this->css_class."_class_th_selected"; } else { $th_css_class = $this->css_class."_class_th" ;};                
                            $this->MainColOpen("center", 0, $field_property_wrap, $field_property_width, $th_css_class);
                            if($this->sorting_allowed){
                                $href_string = $this->CombineUrl("view");
                                $this->SetUrlString($href_string, "filtering", "", "paging");
                                if(isset($_REQUEST[$this->uniquePrefix.'sort_type']) && $_REQUEST[$this->uniquePrefix.'sort_type'] == "asc") $sort_type="desc";
                                else $sort_type="asc";
                                if($req_print != true){                                   
                                    $href_string .= $this->amp.$this->uniquePrefix."sort_field=".($c+1).$this->amp.$this->uniquePrefix."sort_field_by=".$sort_field_by.$this->amp.$this->uniquePrefix."sort_field_type=".$field_property_sort_type.$this->amp.$this->uniquePrefix."sort_type=";
                                    // prepare sorting order by field's type 
                                    if($req_sort_field && ($c == ($req_sort_field -1))){
                                        $href_string .= $sort_type;
                                    }else{
                                        if($this->IsDate($field_name)){ $href_string .= "desc"; }
                                        else{ $href_string .= "asc"; }                                        
                                    }
                                    // <nobr>
                                    echo "<b><a class='".$this->css_class."_class_a_header' href='$href_string' title='".$this->lang['sort']."' ";
                                    if($req_sort_field && ($c == ($req_sort_field -1))){
                                        echo "onmouseover=\"if(document.getElementById('soimg".$c."')){ document.getElementById('soimg".$c."').src='".$sort_img_back."';  }\" ";
                                        echo "onmouseout=\"if(document.getElementById('soimg".$c."')){ document.getElementById('soimg".$c."').src='".$sort_img."';  }\" ";                                
                                    }
                                    echo ">".ucfirst($this->GetHeaderName($field_name))." ";
                                    if($req_sort_field && ($c == ($req_sort_field -1))){
                                        echo $this->nbsp."<img id='soimg".$c."' src='".$sort_img."' alt='".$sort_alt."' title='".$sort_alt."' style='border:0px;'>".$this->nbsp;
                                    }
                                    echo "</a></b>"; // </nobr>
                                }else{
                                    echo "<b>".ucfirst($this->GetHeaderName($field_name))."</b>";                            
                                }
                            }else{
                                echo "<b>".ucfirst($this->GetHeaderName($field_name))."</b>";                        
                            }
                            $this->MainColClose();
                        }
                    }//for
                }else if($this->mode === "edit"){                    
                    foreach($this->columns_edit_mode as $key => $val){
                        if($this->GetFieldProperty($key, "type") != "hidden"){
                            if($this->CanViewField($key)){
                                $this->MainColOpen("center",0);
                                // alow/disable sorting by headers                    
                                echo "<b>".ucfirst($this->GetHeaderName($key))."</b>";                        
                                $this->MainColClose();                                
                            }
                        }                        
                    }
                }            
            }
            if(isset($this->modes['details'][$this->mode]) && $this->modes['details'][$this->mode]){
                $this->MainColOpen("center",0,"nowrap", "10%", $this->css_class."_class_th_normal");echo $this->lang['view'];$this->MainColClose();
            }                        
            if(isset($this->modes['delete'][$this->mode]) && $this->modes['delete'][$this->mode]){
                $this->MainColOpen("center",0,"nowrap", "10%", $this->css_class."_class_th_normal");echo $this->lang['delete'];$this->MainColClose();
            }                
        $this->RowClose();
        // *** END HEADERS -----------------------------------------------------

        //if we add a new row on linked tabular view mode table (mode 0 <-> 0)
        $quick_exit = false;        
        if((isset($_REQUEST[$this->uniquePrefix.'mode']) && ($_REQUEST[$this->uniquePrefix.'mode'] == "add")) && ($this->row_lower == 0) && ($this->row_upper == 0)){
            $this->row_upper = 1;
            $quick_exit = true;
        }        

        // *** START DRAWING ROWS ----------------------------------------------
        $first_field_name = "";
        $curr_url = "";
        $c_curr_url = "";
        for($r = $this->row_lower; (($r >=0 && $this->row_upper >=0) && ($r < $this->row_upper) && ($r < ($this->row_lower + $this->req_page_size))); $r++){            
            // add new row (ADD MODE)
            if(($r == $this->row_lower) && ($this->rid == -1) && ($req_mode == "add")){
                if($r % 2 == 0){$this->RowOpen($r, $this->rowColor[0]); $main_td_color=$this->rowColor[2];}
                else  {$this->RowOpen($r, $this->rowColor[1]); $main_td_color=$this->rowColor[3];}
                $curr_url = $this->CombineUrl("update", -1, $this->amp);
                $this->SetUrlString($c_curr_url, "filtering", "sorting", "paging", $this->amp);                
                $curr_url .= $c_curr_url;
                $curr_url .= $this->amp.$this->uniquePrefix."new=1";
                echo "<form name='".$this->uniquePrefix."frmEditRow' id='".$this->uniquePrefix."frmEditRow' method='post' action='".$curr_url."'>".chr(13);
                echo "<input type='hidden' name='".$this->uniquePrefix."_operation_randomize_code' value='".$this->GetRandomString(20)."'>".chr(13);
                $this->SetEditFieldsFormScript($curr_url);
                // draw multi-row empty cell
                if(($this->multirow_allowed) && (!$this->is_error)){$this->ColOpen("center",0,"nowrap",$this->rowColor[0], $this->css_class."_class_td");echo $this->nbsp;$this->ColClose();}                            
                $this->ColOpen("center",0,"nowrap",$main_td_color, $this->css_class."_class_td_main");
                $this->DrawModeButton("edit", "#", $this->lang['create'], $this->lang['create_new_record'], "update.gif", "\"".$this->uniquePrefix."sendEditFields(); return false;\"", false, "&nbsp", "");                    
                $cancel_url = $this->CombineUrl("cancel", -1);                
                $this->SetUrlString($cancel_url, "filtering", "sorting", "paging");                                
                $cancel_url .= $this->amp.$this->uniquePrefix."new=1";
                $this->DrawModeButton("cancel", $cancel_url, $this->lang['cancel'], $this->lang['cancel'], "cancel.gif", "\"return ".$this->uniquePrefix."verifyCancel('".$cancel_url."'); javascript:document.location.href='".$this->HTTP_URL.$cancel_url."'\"", false, $this->nbsp, "");
                $this->ColClose();                
                
                foreach($this->columns_edit_mode as $key => $val){
                    if($this->GetFieldProperty($key, "type") != "hidden"){
                        $this->ColOpen("left",0,"nowrap");
                        if($this->IsForeignKey($key)){
                            echo $this->nbsp.$this->GetForeignKeyInput(-1, $key, '-1', "edit").$this->nbsp;
                        }else{
                            echo $this->GetFieldValueByType('', 0, '', $key);
                        }
                        $this->ColClose();                    
                    }else{
                        echo $this->GetFieldValueByType('', 0, '', $key);
                    }
                }                 
                
                if(isset($this->modes['delete']) && $this->modes['delete'][$this->mode]) $this->ColOpen("center",0,"nowrap");echo"";$this->ColClose();                
                echo "</form>"; 
                $this->RowClose();                
            }
                            
            //if we add a new row on linked tabular view mode table (mode 0 <-> 0) 
            if($quick_exit == true){
                $this->TblClose();
                echo "<script type='text/javascript'>\n<!--\n document.getElementById('".$this->unique_random_prefix."loading_image').style.display='none'; \n//-->\n</script>";                
                if(($this->first_field_focus_allowed) && ($first_field_name != "")) echo "<script type='text/javascript'>\n<!--\n document.forms['".$this->uniquePrefix."frmEditRow']".$this->GetFieldRequiredType($first_field_name).$first_field_name.".focus(); \n//-->\n</script>";                
                return;            
            }
            
            $row = $this->data_set->fetchRow();
            if($r % 2 == 0){$this->RowOpen($r, $this->rowColor[0]); $main_td_color=$this->rowColor[2];}
            else  {$this->RowOpen($r, $this->rowColor[1]); $main_td_color=$this->rowColor[3];}
            
            // draw multi-row row checkboxes
            if($this->multirow_allowed){
                $this->ColOpen("center",0,"nowrap","","");                
                if($req_print == true){
                    $disable = "disabled";
                }else{
                    $disable = "";
                }
                echo "<input onclick=\"onMouseClickRow('".$this->uniquePrefix."','".$r."', '".$this->rowColor[5]."', '".$this->rowColor[1]."', '".$this->rowColor[0]."')\" type='checkbox' name='".$this->uniquePrefix."checkbox_".$r."' id='".$this->uniquePrefix."checkbox_".$r."' value='";
                echo ($row[$this->GetFieldOffset($this->primary_key)] != -1) ? $row[$this->GetFieldOffset($this->primary_key)] : "0" ;
                echo "' ".$disable.">";
                $this->ColClose();                
            }
            
            // draw mode buttons
            if(isset($this->modes['edit'][$this->mode]) && $this->modes['edit'][$this->mode]){
                if(($this->mode == "edit") && (intval($this->rid) == intval($row[$this->GetFieldOffset($this->primary_key)]))){
                    $curr_url = $this->CombineUrl("update", $row[$this->GetFieldOffset($this->primary_key)], $this->amp);
                    $cancel_url = $this->CombineUrl("cancel", $row[$this->GetFieldOffset($this->primary_key)]);
                    $this->SetUrlString($c_curr_url, "filtering", "sorting", "paging", $this->amp);
                    $curr_url .= $c_curr_url;
                    $cancel_url .= $c_curr_url;                                  
                    if(isset($_REQUEST[$this->uniquePrefix.'mode']) && $_REQUEST[$this->uniquePrefix.'mode'] === "add") { $curr_url .= $this->amp.$this->uniquePrefix."new=1"; $cancel_url .= $this->amp.$this->uniquePrefix."new=1";}
                    echo "<form name='".$this->uniquePrefix."frmEditRow' id='".$this->uniquePrefix."frmEditRow' method='post' action='".$curr_url."'>".chr(13);
                    echo "<input type='hidden' name='".$this->uniquePrefix."_operation_randomize_code' value='".$this->GetRandomString(20)."'>".chr(13);
                    $this->SetEditFieldsFormScript($curr_url);                    
                    $this->ColOpen("center",0,"nowrap",$main_td_color, $this->css_class."_class_td_main");
                    $this->DrawModeButton("edit", "#", $this->lang['update'], $this->lang['update_record'], "update.gif", "\"".$this->uniquePrefix."sendEditFields(); return false;\"", false, "&nbsp;", "");                                        
                    if(isset($_REQUEST[$this->uniquePrefix.'mode']) && $_REQUEST[$this->uniquePrefix.'mode'] === "add") {
                        $cancel_url = $this->CombineUrl("delete", $row[$this->primary_key]);
                        $this->SetUrlString($cancel_url, "filtering", "sorting", "paging");                        
                        if(isset($this->modes['cancel'][$this->mode]) && $this->modes['cancel'][$this->mode]){
                            $this->DrawModeButton("cancel", $cancel_url, $this->lang['cancel'], $this->lang['cancel'], "cancel.gif", "\"return ".$this->uniquePrefix."verifyCancel('".$cancel_url."'); javascript:document.location.href='".$this->HTTP_URL.$cancel_url."'\"", false, $this->nbsp, "");
                        }
                    }else{
                        $this->DrawModeButton("cancel", $cancel_url, $this->lang['cancel'], $this->lang['cancel'], "cancel.gif", "\"javascript:document.location.href='".$this->HTTP_URL.$cancel_url."'\"", false, $this->nbsp, "");
                    }                    
                    $this->ColClose();
                }else {                                                            
                    $row_id = ($this->GetFieldOffset($this->primary_key) != "-1") ? $row[$this->GetFieldOffset($this->primary_key)] : $this->GetFieldOffset($this->primary_key);
                    $curr_url = $this->CombineUrl("edit", $row_id);
                    $this->SetUrlString($curr_url, "filtering", "sorting", "paging");                                            
                    if(isset($_REQUEST[$this->uniquePrefix.'new']) && (isset($_REQUEST[$this->uniquePrefix.'new']) == 1)){
                        $curr_url .= $this->amp.$this->uniquePrefix."new=1";
                    }
                    if(isset($this->modes['edit'][$this->mode]) && $this->modes['edit'][$this->mode]){
                        // by field Value - link on Edit mode page
                        if (isset($this->modes['edit']['byFieldValue']) && ($this->modes['edit']['byFieldValue'] != "")){
                            if($this->GetFieldOffset($this->modes['edit']['byFieldValue']) == "-1"){
                                if($this->debug){
                                    $this->ColOpen(($this->direction == "rtl")?"right":"left",0,"nowrap",$main_td_color, $this->css_class."_class_td_main");
                                    echo $this->nbsp.$this->lang['wrong_field_name']." - ".$this->modes['edit']['byFieldValue'].$this->nbsp;
                                }else{
                                    $this->ColOpen("center",0,"nowrap",$main_td_color, $this->css_class."_class_td_main");                                    
                                    $this->DrawModeButton("edit", $curr_url, $this->lang['edit'], $this->lang['edit_record'], "edit.gif", "\"javascript:document.location.href='".$this->HTTP_URL.$curr_url."'\"", false, $this->nbsp, "");
                                }
                            }else{
                                $this->ColOpen(($this->direction == "rtl")?"right":"left",0,"nowrap",$main_td_color, $this->css_class."_class_td_main");
                                echo $this->nbsp."<a class='".$this->css_class."_class_a_header' href='$curr_url'>".$row[$this->GetFieldOffset($this->modes['edit']['byFieldValue'])]."</a>".$this->nbsp;
                            }                            
                        }else{
                            $this->ColOpen("center",0,"nowrap",$main_td_color, $this->css_class."_class_td_main", "10%");                            
                            $this->DrawModeButton("edit", $curr_url, $this->lang['edit'], $this->lang['edit_record'], "edit.gif", "\"javascript:document.location.href='".$this->HTTP_URL.$curr_url."'\"", false, $this->nbsp, ""); 
                        }
                        $this->ColClose();                            
                    }                
                }
               
            }else{
                if(isset($this->modes['add'][$this->mode]) && $this->modes['add'][$this->mode]){                    
                    $this->ColOpen("center",0,"nowrap",$this->rowColor[2], $this->css_class."_class_td_main");$this->ColClose();                    
                }
            }
            
            if($this->rows_numeration){
                $this->ColOpen("center",0,"nowrap"); echo "<label class='".$this->css_class."_class_label'>".($r+1)."</label>"; $this->ColClose();
            }

            // draw column data
            for($c_sorted = $this->col_lower; $c_sorted < count($this->sorted_columns); $c_sorted++){
                // get current column's index (offset)
                $c = $this->sorted_columns[$c_sorted];
                $col_align = $this->GetFieldAlign($c, $row);
                $field_property_wrap = $this->GetFieldProperty($this->GetFieldName($c), "wrap", "view", "lower", $this->wrap);
                if(($this->mode === "view") && ($this->CanViewField($this->GetFieldName($c)))){                    
                    if($req_sort_field == $c+1){
                        $this->ColOpen($col_align, 0, $field_property_wrap, $this->rowColor[0], $this->css_class."_class_td_selected"); 
                    }else{
                        $this->ColOpen($col_align, 0, $field_property_wrap);
                    }                    
                    $field_value = $this->GetFieldValueByType($row[$c], $c, $row);
                    $field_property_summarize = $this->GetFieldProperty($this->GetFieldName($c), "summarize", "view");
                    if(($field_property_summarize == "true") || ($field_property_summarize === true)){                        
                        $this->summarize_columns[$this->GetFieldName($c)] += str_replace(",", "", $row[$c]);
                    }
                    echo $field_value;
                    $this->ColClose();                    
                }else if($this->mode === "edit"){
                    if($this->GetFieldProperty($this->GetFieldName($c), "type") == "hidden"){
                        echo $this->GetFieldValueByType('', 0, '', $this->GetFieldName($c));    
                    }else if($this->CanViewField($this->GetFieldName($c))){                        
                        if($first_field_name == "") $first_field_name = $this->GetFieldName($c);
                        if(intval($this->rid) === intval($row[$this->GetFieldOffset($this->primary_key)])){
                            $this->ColOpen("left", 0, $field_property_wrap);
                            if($this->IsForeignKey($this->GetFieldName($c))){
                                echo $this->nbsp.$this->GetForeignKeyInput($row[$this->GetFieldOffset($this->primary_key)], $this->GetFieldName($c), $row[$c], "edit").$this->nbsp;
                            }else{
                                echo $this->GetFieldValueByType($row[$c], $c, $row);
                            }                                
                            $this->ColClose();
                        }else{
                            $this->ColOpen($col_align, 0, $field_property_wrap);
                            if($this->IsForeignKey($this->GetFieldName($c))){
                                echo $this->nbsp.$this->GetForeignKeyInput($row[$this->GetFieldOffset($this->primary_key)], $this->GetFieldName($c), $row[$c],"view").$this->nbsp;
                            }else{
                                echo $this->nbsp.trim($row[$c]).$this->nbsp;
                            }                                                                 
                            $this->ColClose();
                        }
                    }
                }
            }
            $row_id = ($this->GetFieldOffset($this->primary_key) != "-1") ? $row[$this->GetFieldOffset($this->primary_key)] : $this->GetFieldOffset($this->primary_key);
            if(isset($this->modes['details'][$this->mode]) && $this->modes['details'][$this->mode]){
                $curr_url = $this->CombineUrl("details", $row_id);
                $this->SetUrlString($curr_url, "filtering", "sorting", "paging");                
                $this->ColOpen("center",0,"nowrap");
                $this->DrawModeButton("details", $curr_url, $this->lang['details'], $this->lang['view_details'], "details.gif", "\"javascript:document.location.href='".$this->HTTP_URL.$curr_url."';\"", false, $this->nbsp, "");                        
                $this->ColClose();
            }
            if(isset($this->modes['delete'][$this->mode]) && $this->modes['delete'][$this->mode]){
                $curr_url = $this->CombineUrl("delete", $row_id);
                $this->SetUrlString($curr_url, "filtering", "sorting", "paging");                                                                            
                $this->ColOpen("center",0,"nowrap");
                $this->DrawModeButton("delete", $curr_url, $this->lang['delete'], $this->lang['delete_record'], "delete.gif", "\"return ".$this->uniquePrefix."verifyDelete('$curr_url');\"", false, "", "");                        
                $this->ColClose();
            }       

            if(($this->mode == "edit") && (intval($this->rid) == intval($row[$this->GetFieldOffset($this->primary_key)]))){ echo "</form>"; }
            $this->RowClose();
        }
        // *** END ROWS --------------------------------------------------------        
       
        
        // draw summarizing row
        if($r != $this->row_lower){ $this->DrawSummarizeRow($r); }         
        $this->TblClose();       
        
        // draw empty table       
        if($r == $this->row_lower){ $this->NoDataFound(); }
        $this->ScrollDivClose();        
        
        $this->DrawMultiRowBar($r, $curr_url);  // draw multi-row row footer cell

        if($this->paging_allowed) $this->PagingSecondPart($this->lower_paging, true, true, "Lower");
        
        // draw hide DG close div 
        $this->HideDivClose();
        echo "<script type='text/javascript'>\n<!--\n document.getElementById('".$this->unique_random_prefix."loading_image').style.display='none'; \n//-->\n</script>";
        
        if(($this->first_field_focus_allowed) && ($first_field_name != "")) echo "<script type='text/javascript'>\n<!--\n document.".$this->uniquePrefix."frmEditRow.".$this->GetFieldRequiredType($first_field_name).$first_field_name.".focus(); \n//-->\n</script>";        
    }    
  
    //--------------------------------------------------------------------------
    // draw in columnar layout
    //--------------------------------------------------------------------------
    protected function DrawColumnar(){
        $r = ""; //???
        $req_print = $this->GetVariable('print');
        $req_mode = ($this->mode_after_update == "") ? $this->GetVariable('mode') : $this->mode_after_update;
        
        $this->ExportTo();
        $this->ShowCaption($this->caption);        
        $this->DrawControlPanel();
        
        if((($req_mode !== "add") && ($req_mode !== "details")) || ($req_mode == "")) $this->PagingFirstPart();  
        $this->DisplayMessages();          
      
        if(isset($this->modes['add'][$this->mode]) && $this->modes['add'][$this->mode]){
            $this->TblOpen();
            $this->RowOpen($r, $this->rowColor[0]);            
                $curr_url = $this->CombineUrl("add", "-1");
                $this->SetUrlString($curr_url, "filtering", "sorting", "paging");                                                                                        
                $this->MainColOpen("center",0,"nowrap", "", $this->css_class."_class_th_normal");
                $this->DrawModeButton("add", $curr_url, $this->lang['add_new'], $this->lang['add_new'], "add.gif", "\"javascript:document.location.href='".$this->HTTP_URL.$curr_url."';\"", true, "", "");                        
                $this->MainColClose();
            $this->RowClose();
            $this->TblClose();                
        }

        if($this->paging_allowed) $this->PagingSecondPart($this->upper_paging, false, true, "Upper");

        //prepare action url for the form
        $curr_url = $this->CombineUrl("update", $this->rid, $this->amp);
        $this->SetUrlString($c_curr_url, "filtering", "sorting", "paging", $this->amp);
        $curr_url .= $c_curr_url;
        if($req_mode === "add") {
            $curr_url .= $this->amp.$this->uniquePrefix."new=1";
        }                    

        echo "<div id='".$this->unique_random_prefix."loading_image'><br><table align='center'><tr><td valign='middle'>".$this->lang['loading_data']."</td><td valign='middle'><img src='".$this->directory."images/common/loading.gif'></td></tr></table></div>";                
        echo "<form name='".$this->uniquePrefix."frmEditRow' id='".$this->uniquePrefix."frmEditRow' method='post' action='".$curr_url."'>".chr(13);
        echo "<input type='hidden' name='".$this->uniquePrefix."_operation_randomize_code' value='".$this->GetRandomString(20)."'>".chr(13);
        $this->TblOpen();
        // draw header
        $this->RowOpen($r);        
        $this->MainColOpen("center",0,"nowrap","32%", (($req_print == true) ? $this->css_class."_class_td" : $this->css_class."_class_th")); echo "<b>".(($this->field_header != "") ? $this->field_header : $this->lang['field'])."</b>"; $this->MainColClose(); 
        $this->MainColOpen("center",0,"nowrap","68%", (($req_print == true) ? $this->css_class."_class_td" : $this->css_class."_class_th")); echo "<b>".(($this->field_value_header != "") ? $this->field_value_header : $this->lang['field_value'])."</b>"; $this->MainColClose(); 
        $this->RowClose();        

        // set number of showing rows on the page
        if(($this->layouts['view'] == "0") && ($this->layouts['edit'] == "1") && ($this->mode == "edit")){
            if($this->multi_rows > 0){
                $this->req_page_size = $this->multi_rows;
            }else{
                $this->req_page_size = 1;
            }
        }else if(($this->layouts['view'] == "0") && ($this->layouts['edit'] == "1") && ($this->mode == "details")){
            if($this->multi_rows > 0){
                $this->req_page_size = $this->multi_rows;
            }else{
                $this->req_page_size = 1;
            }            
        }else if(($this->layouts['view'] == "1") && ($this->layouts['edit'] == "1") && ($this->mode == "edit")){
            $this->req_page_size = 1;  // ???          
        }else if(($this->layouts['edit'] == "1") && ($this->mode == "details")){
            $this->req_page_size = 1;              
        }         

        $first_field_name = ""; /* we need it to set a focus on this field */
        // draw rows in ADD MODE
        if($this->rid == -1){            
            foreach($this->columns_edit_mode as $key => $val){
                if(($first_field_name == "") && (($this->mode === "edit") || ($this->mode === "add"))) $first_field_name = $key;
                if($r % 2 == 0) $this->RowOpen($r, $this->rowColor[0]);
                else $this->RowOpen($r, $this->rowColor[1]);
                if($key == "delimiter"){
                    $this->ColOpen(($this->direction == "rtl")?"right":"left",2,"nowrap");
                        echo $this->GetFieldProperty("delimiter", "inner_html");
                    $this->ColClose();
                }else if($key == "validator"){
                    $field_property_for_field = $this->GetFieldProperty("validator", "for_field");
                    $field_property_header    = $this->GetFieldProperty("validator", "header");
                    $field_property_req_type  = $this->GetFieldProperty("validator", "req_type");
                    // column's header
                    $this->ColOpen(($this->direction == "rtl")?"right":"left",0,"nowrap");                
                        echo $this->nbsp;echo "<b>".ucfirst($field_property_header)."</b>";                        
                    $this->ColClose();
                    // column's data                    
                    $col_align = ($this->direction == "rtl")?"right":"left";
                    $this->ColOpen($col_align,0,"nowrap");
                        echo $this->GetFieldValueByType('', 0, '', $field_property_for_field, $field_property_req_type);
                    $this->ColClose();
                }else if($this->GetFieldProperty($key, "type") == "hidden"){
                    echo $this->GetFieldValueByType('', 0, '', $key);
                }else{
                    // column's header
                    $this->ColOpen(($this->direction == "rtl")?"right":"left",0,"nowrap");                
                        echo $this->nbsp;echo "<b>".ucfirst($this->GetHeaderName($key))."</b>";                        
                    $this->ColClose();
                    // column's data
                    $col_align = ($this->direction == "rtl")?"right":"left";
                    $this->ColOpen($col_align,0,"nowrap");
                    if($this->IsForeignKey($key)){
                        echo $this->nbsp.$this->GetForeignKeyInput(-1, $key, '-1', "edit").$this->nbsp;
                    }else{
                        echo $this->GetFieldValueByType('', 0, '', $key);
                    }
                    $this->ColClose();
                }
                $this->RowClose();
            }
        }     
        // *** START DRAWING ROWS ----------------------------------------------
        for($r = $this->row_lower; (($this->rid != -1) && ($r < $this->row_upper) && ($r < ($this->row_lower + $this->req_page_size))); $r++){                               
            $row = $this->data_set->fetchRow();
            // draw column headers                     
            for($c_sorted = $this->col_lower; $c_sorted < count($this->sorted_columns); $c_sorted++){
                // get current column's index (offset)
                $c = $this->sorted_columns[$c_sorted];
                if($r % 2 == 0) $this->RowOpen($r, $this->rowColor[0]);
                else $this->RowOpen($r, $this->rowColor[1]);                
                if($this->CanViewField($this->GetFieldName($c))){
                    if($this->GetFieldProperty($this->GetFieldName($c), "type") == "hidden"){
                        echo $this->GetFieldValueByType('', 0, '', $this->GetFieldName($c));                        
                    }else{
                        if(($first_field_name == "") && (($this->mode === "edit") || ($this->mode === "add"))) $first_field_name = $this->GetFieldName($c);
                            
                        // column headers
                        if(($this->mode === "view") && ($this->CanViewField($this->GetFieldName($c)))){
                            $this->ColOpen(($this->direction == "rtl")?"right":"left",0,"nowrap");                   
                            echo $this->nbsp;echo "<b>".ucfirst($this->GetHeaderName($this->GetFieldName($c)))."</b>";                        
                            $this->ColClose();
                        }else if(($this->mode === "edit") && ($this->CanViewField($this->GetFieldName($c)))){
                            $this->ColOpen(($this->direction == "rtl")?"right":"left",0,"nowrap");                   
                            echo $this->nbsp;echo "<b>".ucfirst($this->GetHeaderName($this->GetFieldName($c)))."</b>";                        
                            $this->ColClose();
                        }else if(($this->mode === "details") && ($this->CanViewField($this->GetFieldName($c)))){
                            $this->ColOpen(($this->direction == "rtl")?"right":"left",0,"nowrap");                   
                            echo $this->nbsp;echo "<b>".ucfirst($this->GetHeaderName($this->GetFieldName($c)))."</b>";                        
                            $this->ColClose();
                        }
                        
                        // column data 
                        $col_align = ($this->direction == "rtl") ? "right" : "left";
                        if(($this->mode === "view") && ($this->CanViewField($this->GetFieldName($c)))){
                            $field_property_wrap = $this->GetFieldProperty($this->GetFieldName($c), "wrap", "view");
                            $this->ColOpen($col_align, 0, $field_property_wrap);
                            echo $this->GetFieldValueByType($row[$c], $c, $row);
                            $this->ColClose();                    
                        }else if(($this->mode === "details") && ($this->CanViewField($this->GetFieldName($c)))){
                            $this->ColOpen($col_align,0);
                            if($this->IsForeignKey($this->GetFieldName($c))){
                                echo $this->GetForeignKeyInput($row[$this->GetFieldOffset($this->primary_key)], $this->GetFieldName($c), $row[$c],"view");
                            }else{
                                echo $this->GetFieldValueByType($row[$c], $c, $row);
                            }
                            $this->ColClose();
                        }else if(($this->mode === "edit") && ($this->CanViewField($this->GetFieldName($c)))){
                            // if we have multi-rows selected
                            // mr_2 
                            if($this->multi_rows > 0){
                                $rid_value = $this->rids[$r];
                            }else{
                                $rid_value = $this->rid;
                            }
                            $ind = ($this->GetFieldOffset($this->primary_key) != -1) ? $this->GetFieldOffset($this->primary_key) : 0;
                            if(intval($rid_value) === intval($row[$ind])){
                                    $this->ColOpen($col_align,0,"nowrap");
                                    if($this->IsForeignKey($this->GetFieldName($c))){
                                        echo $this->nbsp.$this->GetForeignKeyInput($row[$ind], $this->GetFieldName($c), $row[$c], "edit").$this->nbsp;
                                    }else{
                                        echo $this->GetFieldValueByType($row[$c], $c, $row);
                                    }
                                    $this->ColClose();
                            }else{
                                $this->ColOpen($col_align,0,"nowrap");
                                if($this->rid == -1){
                                    // add new row                                    
                                    if($this->IsForeignKey($this->GetFieldName($c))){
                                        echo $this->nbsp.$this->GetForeignKeyInput(-1, $this->GetFieldName($c), '-1', "edit").$this->nbsp;
                                    }else{
                                        echo $this->GetFieldValueByType('', $c, $row);
                                    }                                    
                                }else{
                                    if($this->IsForeignKey($this->GetFieldName($c))){
                                        echo $this->nbsp.$this->GetForeignKeyInput($row[$this->GetFieldOffset($this->primary_key)], $this->GetFieldName($c), $row[$c],"view").$this->nbsp;
                                    }else{
                                        echo $this->nbsp.trim($row[$c]).$this->nbsp;    
                                    }                                    
                                }
                                $this->ColClose();
                            }
                        }                        
                    }
                }else{
                    if($this->mode != "details"){
                        $ind = 0;
                        foreach($this->columns_edit_mode as $key => $val){
                            if($ind == $c_sorted){
                                if($key == "validator"){ // customized rows (validator)
                                    $field_property_for_field = $this->GetFieldProperty($key, "for_field");
                                    $field_property_header    = $this->GetFieldProperty($key, "header");
                                    $field_property_req_type  = $this->GetFieldProperty($key, "req_type");
                                    $this->ColOpen(($this->direction == "rtl")?"right":"left",0,"nowrap");                   
                                        echo $this->nbsp;echo "<b>".ucfirst($field_property_header)."</b>";                        
                                    $this->ColClose();
                                    $field_property_wrap = $this->GetFieldProperty($this->GetFieldName($c), "wrap", "view");
                                    $this->ColOpen($col_align, 0, $field_property_wrap);
                                        $field_property_for_field_offset = $this->GetFieldOffset($field_property_for_field);
                                        if($field_property_for_field_offset != "-1") echo $this->GetFieldValueByType($row[$field_property_for_field_offset], $field_property_for_field_offset, $row, "", $field_property_req_type);
                                    $this->ColClose();                    
                                }else if($key == "delimiter"){ // customized rows (delimiter)                                
                                    $this->ColOpen("",2,"nowrap");                                
                                    echo $this->GetFieldProperty("delimiter", "inner_html");
                                    $this->ColClose();                                            
                                }
                            }
                            $ind++;
                        }                        
                    }
                }
                $this->RowClose();                
            }// for 
        }
        // *** END DRAWING ROWS ------------------------------------------------
        
        $this->TblClose();
        echo "<br>";        
        if(($r == $this->row_lower) && ($this->rid != -1)){
            $this->NoDataFound();
            echo "<br><center>";
            if($req_print != ""){
                echo "<span class='".$this->css_class."_class_a'><b>".$this->lang['back']."</b></span>";                                        
            }else{
                echo "<a class='".$this->css_class."_class_a' href='javascript:history.go(-1);'><b>".$this->lang['back']."</b></a>";                    
            }                
            echo "</center>";        
        }else{            
            $this->TblOpen(); 
            $this->RowOpen($r, $this->rowColor[1]);
            $this->MainColOpen('left', 0, '', '', (($req_print == true) ? $this->css_class."_class_td_normal" : $this->css_class."_class_th"), "style='BORDER-RIGHT: #d2d0bb 0px solid;'");
            if($this->mode === "details"){
                $cancel_url = ($this->GetFieldOffset($this->primary_key) != "-1") ? $this->CombineUrl("cancel", $row[$this->GetFieldOffset($this->primary_key)]) : $this->CombineUrl("cancel", "");
                $this->SetUrlString($c_curr_url, "filtering", "sorting", "paging");                                                                                                        
                $cancel_url .= $c_curr_url;                
                echo "<div style='float:";
                echo ($this->direction == "rtl")?"left":"right";
                if($req_print != ""){
                    echo ";'><span class='".$this->css_class."_class_a'><b>".$this->lang['back']."</b></span></div>";                                        
                }else{
                    echo ";'>";
                    echo $this->DrawModeButton("cancel", $cancel_url, $this->lang['back'], $this->lang['back'], "cancel.gif", "\"javascript:document.location.href='".$this->HTTP_URL.$cancel_url."'\"", false, "", "");
                    echo "</div>";
                }
            }else{
                // if not new row
                $ind = ($this->GetFieldOffset($this->primary_key) != -1) ? $this->GetFieldOffset($this->primary_key) : 0;                
                if(($this->rid != -1) && isset($this->modes['delete'][$this->mode]) && $this->modes['delete'][$this->mode]){
                    $curr_url = $this->CombineUrl("delete", $row[$ind]);
                    $this->SetUrlString($curr_url, "filtering", "sorting", "paging");
                    $this->DrawModeButton("delete", $curr_url, $this->lang['delete'], $this->lang['delete_record'], "delete.gif", "\"return ".$this->uniquePrefix."verifyDelete('$curr_url');\"", true, "", "");                        
                }

                if($this->rid != -1){
                    $rid = $row[$ind];
                }else{
                    $rid = -1;
                }
                $curr_url = $this->CombineUrl("update", $rid);
                $cancel_url = $this->CombineUrl("cancel", $rid);
                $this->SetUrlString($c_curr_url, "filtering", "sorting", "paging");
                $cancel_url .= $c_curr_url;
                $curr_url .= $c_curr_url;
                
                if(isset($this->modes['edit'][$this->mode]) && $this->modes['edit'][$this->mode]){
                    if($req_mode === "add") { $cancel_url .= $this->amp.$this->uniquePrefix."new=1";}                    
                    $this->SetEditFieldsFormScript();
                                    
                    echo "<div style='float:"; echo ($this->direction == "rtl")?"left":"right"; echo ";'>";    
                    if($req_mode === "add") {
                        if($this->rid == -1){
                            $cancel_url = $this->CombineUrl("cancel", $rid);
                        }else{
                            $cancel_url = $this->CombineUrl("delete", $rid);
                        }
                        $this->SetUrlString($cancel_url, "filtering", "sorting", "paging");
                        
                        $this->DrawModeButton("cancel", $cancel_url, $this->lang['cancel'], $this->lang['cancel'], "cancel.gif", "\"return ".$this->uniquePrefix."verifyCancel('$cancel_url'); javascript:document.location.href='".$this->HTTP_URL.$cancel_url."'\"", false, $this->nbsp, "");                        
                    }else{
                        $this->DrawModeButton("cancel", $cancel_url, $this->lang['cancel'], $this->lang['cancel'], "cancel.gif", "\"javascript:document.location.href='".$this->HTTP_URL.$cancel_url."'\"", false, $this->nbsp, "");
                    }                    
                    echo "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;";
                    if($this->rid == -1){ //aaa new record
                       $this->DrawModeButton("edit", "#", $this->lang['create'], $this->lang['create_new_record'], "update.gif", "\"".$this->uniquePrefix."sendEditFields(); return false;\"", false, $this->nbsp, "");
                    }else{
                       $this->DrawModeButton("edit", "#", $this->lang['update'], $this->lang['update_record'], "update.gif", "\"".$this->uniquePrefix."sendEditFields(); return false;\"", false, $this->nbsp, "");
                    }
                    echo "</div>";
                }else{
                    if(isset($this->modes['cancel'][$this->mode]) && $this->modes['cancel'][$this->mode]){
                        echo "<div style='float:"; echo ($this->direction == "rtl")?"left":"right"; echo ";'>";   
                        $this->DrawModeButton("cancel", $cancel_url, $this->lang['back'], $this->lang['back'], "cancel.gif", "\"\"", false, $this->nbsp, "");
                        echo "</div>";                       
                    }                    
                }
            }
            $this->MainColClose();
            $this->RowClose();
            $this->TblClose();              
        }
        
        echo "</form>";
        echo "<script type='text/javascript'>\n<!--\n document.getElementById('".$this->unique_random_prefix."loading_image').style.display='none'; \n//-->\n</script>";
        
        if($this->paging_allowed) $this->PagingSecondPart($this->lower_paging, true, true, "Lower");               
        if(($this->first_field_focus_allowed) && ($first_field_name != "")) echo "<script type='text/javascript'>\n<!--\n document.".$this->uniquePrefix."frmEditRow.".$this->GetFieldRequiredType($first_field_name).$first_field_name.".focus(); \n//-->\n</script>";
    } 


    //--------------------------------------------------------------------------
    // draw Multi-Row Bar
    //--------------------------------------------------------------------------
    protected function DrawMultiRowBar($r, $curr_url){
        $req_print = $this->GetVariable('print');
        $horizontal_align = ($this->tblAlign[$this->mode] == "center") ? "margin-left: auto; margin-right: auto;" : "";
        
        if(($this->multirow_allowed) && ($r != $this->row_lower)){
            echo "<script type='text/javascript'>\n<!--\n 
            function ".$this->uniquePrefix."verifySelected(param, button_type, flag_name, flag_value){
                if(confirm('Are you sure you want to carry out this operation?')){
                    selected_rows = '&".$this->uniquePrefix."rid=';
                    selected_rows_ids = '';
                    found = 0;
                    for(i=".$this->row_lower."; i < ".$this->row_upper."; i++){
                        if(document.getElementById(\"".$this->uniquePrefix."checkbox_\"+i).checked == true){
                            if(found == 1){ selected_rows_ids += '-'; }
                            selected_rows_ids += document.getElementById(\"".$this->uniquePrefix."checkbox_\"+i).value;
                            found = 1;
                        }
                    }
                    if(found){
                        document_location_href = param+selected_rows+selected_rows_ids;
                        if(flag_name != ''){                            
                            found = (document_location_href.indexOf(flag_name) != -1);
                            if(!found){
                                document_location_href += '&'+flag_name+'='+flag_value;
                            }
                        }
                        document.location.href = document_location_href;
                    }else{
                        alert('You need to select one or more rows to carry out this operation!');
                        return false;
                    }
                }
            };            
            function ".$this->uniquePrefix."setCheckboxes(check){
                if(check){
                    for(i=".$this->row_lower."; i < ".$this->row_upper."; i++){
                        document.getElementById('".$this->uniquePrefix."checkbox_'+i).checked = true;
                        document.getElementById('".$this->uniquePrefix."row_'+i).style.background = '".$this->rowColor[5]."';                        
                    }
                }else{
                    for(i=".$this->row_lower."; i < ".$this->row_upper."; i++){
                        document.getElementById('".$this->uniquePrefix."checkbox_'+i).checked = false;
                        if((i % 2) == 0) row_color_back = '".$this->rowColor[0]."';
                        else row_color_back = '".$this->rowColor[1]."';
                        document.getElementById('".$this->uniquePrefix."row_'+i).style.background = row_color_back;
                    }                
                }
            }
            \n//-->\n</script>
            ";
            echo "<table dir='".$this->direction."' border='0' style='".$horizontal_align."' width='".$this->tblWidth[$this->mode]."'>";
            echo "<tr>";
            echo "<td align='left'>";
            echo "<table border='0'>
                <tr>
                    <td align='left' valign='middle' class='class_nowrap'>";
                        $count = 0;
                        foreach($this->multirow_operations_array as $key => $val){
                            if($this->multirow_operations_array[$key]['view']) $count++;
                        }                        
                        if($count > 0){
                            echo "<img style='PADDING:0px; MARGIN:0px; border:0px;' src='".$this->directory."images/".$this->css_class."/arrow_ltr.png' width='38' height='22' alt='".$this->lang['with_selected'].":' title='".$this->lang['with_selected'].":'>";
                                if(!$req_print){
                                    echo "<a class='".$this->css_class."_class_a' href='javascript:void(0);' onClick='".$this->uniquePrefix."setCheckboxes(true); return false;'>".$this->lang['check_all']."</a>
                                    &nbsp;/&nbsp;
                                    <a class='".$this->css_class."_class_a' href='javascript:void(0);' onClick='".$this->uniquePrefix."setCheckboxes(false); return false;'>".$this->lang['uncheck_all']."</a>";
                                }else{
                                    echo "<a class='".$this->css_class."_class_label'>".$this->lang['check_all']."</label>
                                    &nbsp;/&nbsp;
                                    <a class='".$this->css_class."_class_label'>".$this->lang['uncheck_all']."</label>";                                    
                                }
                            echo "    
                                &nbsp;&nbsp;&nbsp;
                                <label class='".$this->css_class."_class_label'><i>".$this->lang['with_selected'].":</i></label>&nbsp;&nbsp;
                                </td>
                                <td align='left' valign='bottom' >";
                            foreach($this->multirow_operations_array as $key => $val){
                                if($this->multirow_operations_array[$key]['view']){
                                    echo "&nbsp;";
                                    $curr_url = $this->CombineUrl($key, "");
                                    $flag_name = isset($val['flag_name']) ? $val['flag_name'] : "";
                                    $flag_value = isset($val['flag_value']) ? $val['flag_value'] : "";
                                    $tooltip = isset($val['tooltip']) ? $val['tooltip'] : $this->lang[$key.'_selected'];
                                    $image = isset($val['image']) ? $val['image'] : $key.".gif" ;
                                    $this->SetUrlString($curr_url, "filtering", "sorting", "paging");                            
                                    $this->DrawModeButton($key, $curr_url, $tooltip, $tooltip, $image, "\"return ".$this->uniquePrefix."verifySelected('$curr_url', '$key', '$flag_name', '$flag_value');\"", false, "", "image");
                                    echo "&nbsp;";
                                }
                            }
                        }                            
            echo "                            
                    </td>
                </tr>
               </table>
            ";
            echo "</td>";
            echo "</tr>";
            echo "</table>";
        }
    }

    //--------------------------------------------------------------------------
    // draw Summarize Row
    //--------------------------------------------------------------------------
    protected function DrawSummarizeRow($r){
        if(count($this->summarize_columns) > 0){
            $this->RowOpen("", $this->rowColor[0]);            
            // draw multi-row row footer cell
            if($this->multirow_allowed){
                $this->ColOpen("center",0,"nowrap","","");
                echo $this->nbsp;
                $this->ColClose();            
            }
            
            // draw column headers in view mode                    
            for($c_sorted = $this->col_lower; $c_sorted < count($this->sorted_columns); $c_sorted++){
                // get current column's index (offset)
                $c = $this->sorted_columns[$c_sorted];            
                if($c_sorted == $this->col_lower){
                    if((isset($this->modes['add'][$this->mode]) && $this->modes['add'][$this->mode]) ||
                       (isset($this->modes['edit'][$this->mode]) && $this->modes['edit'][$this->mode]))  
                    {
                        $this->ColOpen("center",0,"nowrap",$this->rowColor[2], $this->css_class."_class_td_main");
                        echo "<a class='".$this->css_class."_class_a'><b>".$this->lang['total'].":</b></a>";
                        $this->ColClose();                    
                    }
                    if($this->rows_numeration){
                       $this->ColOpen("center",0,"nowrap"); echo ""; $this->ColClose();
                    }
                }                
                if($this->CanViewField($this->GetFieldName($c))){    
                    $this->ColOpen("right",0,"nowrap");
                    $field_property_summarize = $this->GetFieldProperty($this->GetFieldName($c), "summarize", "view");                    
                    if(($field_property_summarize == "true") || ($field_property_summarize === true)){
                        echo $this->nbsp."=".$this->nbsp."<a class='".$this->css_class."_class_a'><b>".number_format($this->summarize_columns[$this->GetFieldName($c)], 2)."</b></a>";                        
                    }
                    $this->ColClose();                
                }
                
            }
            if((isset($this->modes['details'][$this->mode]) && $this->modes['details'][$this->mode])){
                $this->ColOpen("right",0,"nowrap");$this->ColClose();
            }        
            if((isset($this->modes['delete'][$this->mode]) && $this->modes['delete'][$this->mode])){
                $this->ColOpen("right",0,"nowrap");$this->ColClose();
            }        
            $this->RowClose();
        }    
    }

    //--------------------------------------------------------------------------
    // sort columns by mode order
    //--------------------------------------------------------------------------
    protected function SortColumns($mode = ""){
        if($mode == "view"){            
            foreach($this->columns_view_mode as $fldName => $fldValue){
                $this->sorted_columns[] = $this->GetFieldOffset($fldName);
            }
        }else if(($mode == "edit") || ($mode == "details")){
            if(isset($this->columns_edit_mode) && is_array($this->columns_edit_mode)){
                foreach($this->columns_edit_mode as $fldName => $fldValue){
                    $this->sorted_columns[] = $this->GetFieldOffset($fldName);
                }                            
            }
        }
    }

    //--------------------------------------------------------------------------
    // add error to array of errors
    //--------------------------------------------------------------------------
    protected function AddErrors($dSet = ""){
        if($this->debug){
            if($dSet == "") $dSet = $this->data_set;            
            $this->errors[] = $dSet->getDebugInfo();            
        }
    }
   
    //--------------------------------------------------------------------------
    // add warning to array of warnings
    //--------------------------------------------------------------------------
    protected function AddWarning($warning_field = "", $warning_value = "", $str_warning = ""){
        if($this->debug){
            if($str_warning != ""){
                $this->warnings[] = $str_warning;
            }else{
                $warning = str_replace('_FIELD_', $warning_field, $this->lang['wrong_parameter_error']);
                $warning = str_replace('_VALUE_', $warning_value, $warning);
                $this->warnings[] = $warning;
            }
        }
    }
        
    //--------------------------------------------------------------------------
    // display warnings
    //--------------------------------------------------------------------------
    protected function DisplayWarnings(){
        if($this->debug){
            $count = 0;        
            if(count($this->warnings) > 0){
                echo "<table width='".$this->tblWidth[$this->mode]."'><tr><td align='left'>";                                
                echo "<font class='".$this->css_class."_class_error_message no_print class_underlined'><b>".$this->lang['warnings']."</b>:</font><br><br>";
                foreach($this->warnings as $key){
                    echo "<font class='".$this->css_class."_class_error_message no_print'>".(++$count).") $key</font><br>";            
                }
                echo "<br>";
                echo "</td></tr></table>";                                
            }
        }
    }

    //--------------------------------------------------------------------------
    // display errors
    //--------------------------------------------------------------------------
    protected function DisplayErrors(){
        if($this->debug){
            $count = 0;
            if(count($this->errors) > 0){
                echo "<table width='".$this->tblWidth[$this->mode]."'><tr><td align='left'>";            
                echo "<font class='".$this->css_class."_class_error_message no_print class_underlined'><b>".$this->lang['errors']."</b>:</font><br><br>";
                foreach($this->errors as $key){
                    echo "<font class='".$this->css_class."_class_error_message no_print'>".(++$count).") </font>";
                    echo "<font class='".$this->css_class."_class_label'>".substr($key, 0, strpos($key, "["))."</font><br>";
                    echo "<font class='".$this->css_class."_class_error_message no_print'>".stristr($key, "[")."</font><br><br>";                
                }
                echo "<br>";            
                echo "</td></tr></table>";            
            }
        }
    }

    //--------------------------------------------------------------------------
    // draw data sent by POST and GET
    //--------------------------------------------------------------------------    
    protected function DisplayDataSent(){
        if($this->debug){        
            print_r("<font class='".$this->css_class."_class_ok_message no_print'><b>POST</b>: ");
            print_r($_POST);
            print_r("</font><br><br>");
            print_r("<font class='".$this->css_class."_class_ok_message no_print'><b>GET</b>: ");
            print_r($_GET);
            print_r("</font><br><br>");
        }
    }
        
    //--------------------------------------------------------------------------
    // draw messages
    //--------------------------------------------------------------------------
    protected function DisplayMessages(){
        if($this->messaging && $this->act_msg){
            $css_class = "".$this->css_class."_class_ok_message";
            if($this->is_error) $css_class= "".$this->css_class."_class_error_message no_print";
            if($this->is_warning) $css_class= "".$this->css_class."_class_error_message no_print";            
            echo "<div style='margin-top:10px;margin-bottom:10px;'><center><font class='".$css_class."'>".$this->act_msg."</font></center></div>";
            $this->act_msg = "";
        }        
    }
 
    //--------------------------------------------------------------------------
    // save Http Get Vars
    //--------------------------------------------------------------------------
    protected function SaveHttpGetVars(){
        echo "<div style='padding:0px; margin:0px;'>";        
        if(is_array($this->http_get_vars) && (count($this->http_get_vars) > 0)){
            foreach($this->http_get_vars as $key){
                echo "<input type='hidden' name='".$key."' id='".$key."' value='".((isset($_REQUEST[$key]))?$_REQUEST[$key]:"")."'>";                            
            }
        }
        echo "<input type='hidden' name='".$this->uniquePrefix."page_size'       id='".$this->uniquePrefix."page_size'       value='".((isset($_REQUEST[$this->uniquePrefix.'page_size']))?$_REQUEST[$this->uniquePrefix.'page_size']:$this->req_page_size)."'>\n";                            
        echo "<input type='hidden' name='".$this->uniquePrefix."sort_field'      id='".$this->uniquePrefix."sort_field'      value='".((isset($_REQUEST[$this->uniquePrefix.'sort_field']))?$_REQUEST[$this->uniquePrefix.'sort_field']:"")."'>\n";
        echo "<input type='hidden' name='".$this->uniquePrefix."sort_field_by'   id='".$this->uniquePrefix."sort_field_by'   value='".((isset($_REQUEST[$this->uniquePrefix.'sort_field_by']))?$_REQUEST[$this->uniquePrefix.'sort_field_by']:"")."'>\n";
        echo "<input type='hidden' name='".$this->uniquePrefix."sort_field_type' id='".$this->uniquePrefix."sort_field_type' value='".((isset($_REQUEST[$this->uniquePrefix.'sort_field_type']))?$_REQUEST[$this->uniquePrefix.'sort_field_type']:"")."'>\n";                            
        echo "<input type='hidden' name='".$this->uniquePrefix."sort_type'       id='".$this->uniquePrefix."sort_type'       value='".((isset($_REQUEST[$this->uniquePrefix.'sort_type']))?$_REQUEST[$this->uniquePrefix.'sort_type']:"")."'>\n";
        
        // get URL vars from another  DG
        if(is_array($this->another_datagrids) && (count($this->another_datagrids) > 0)){
            foreach($this->another_datagrids as $key => $val){
                if($val[$this->mode] == true){
                    foreach($_REQUEST as $r_key => $r_val){
                        if(strstr($r_key, $key)){ // ."_ff_"
                           echo "<input type='hidden' name='".$r_key."' id='".$r_key."' value='".((isset($_REQUEST[$r_key]))?$_REQUEST[$r_key]:"")."'>\n";
                        }                
                    }                    
                }
            }
        }
        echo "</div>";                
    }
    
    //--------------------------------------------------------------------------
    // combine url 
    //--------------------------------------------------------------------------
    protected function CombineUrl($mode, $rid="", $amp=""){
        $amp = ($amp != "") ? $amp : $this->amp;
        $ind = 0;
        if(is_array($this->http_get_vars) && (count($this->http_get_vars) > 0)){
            foreach($this->http_get_vars as $key){
                if($ind == 0){ $a_url = "?"; $ind = 1; }
                else $a_url .= $amp; 
                $a_url .= $key."=".((isset($_REQUEST[$key]))?$_REQUEST[$key]:"");
            }
        }
        if($ind == 0) $a_url = "?".$this->uniquePrefix."mode=".$mode."";
        else $a_url .= $amp.$this->uniquePrefix."mode=".$mode."";
        if($rid !== "") $a_url .= $amp.$this->uniquePrefix."rid=".$rid;
        
        // get URL vars from another DG
        if(is_array($this->another_datagrids) && (count($this->another_datagrids) > 0)){
            foreach($this->another_datagrids as $key => $val){
                if($val[$this->mode] == true){
                    $a_url .= $amp.$key."mode=".((isset($_REQUEST[$key.'mode']))?$_REQUEST[$key.'mode']:"");
                    $a_url .= $amp.$key."rid=".((isset($_REQUEST[$key.'rid']))?$_REQUEST[$key.'rid']:"");
                    $a_url .= $amp.$key."sort_field=".((isset($_REQUEST[$key.'sort_field']))?$_REQUEST[$key.'sort_field']:"");
                    $a_url .= $amp.$key."sort_field_by=".((isset($_REQUEST[$key.'sort_field_by']))?$_REQUEST[$key.'sort_field_by']:"");
                    $a_url .= $amp.$key."sort_field_type=".((isset($_REQUEST[$key.'sort_field_type']))?$_REQUEST[$key.'sort_field_type']:"");
                    $a_url .= $amp.$key."sort_type=".((isset($_REQUEST[$key.'sort_type']))?$_REQUEST[$key.'sort_type']:"");
                    $a_url .= $amp.$key."page_size=".((isset($_REQUEST[$key.'page_size']))?$_REQUEST[$key.'page_size']:"");
                    $a_url .= $amp.$key."p=".((isset($_REQUEST[$key.'p']))?$_REQUEST[$key.'p']:"");
                    foreach($_REQUEST as $r_key => $r_val){                    
                        if(strstr($r_key, $key."_ff_")){
                           //d echo  $r_key."=".$_REQUEST[$r_key]."<br>";
                           $a_url .= $amp.$r_key."=".((isset($_REQUEST[$r_key]))?$_REQUEST[$r_key]:"");                        
                        }                
                    }                    
                }
            }
        }        
        return $a_url;         
    }

    //--------------------------------------------------------------------------
    // set SQL limit 
    //--------------------------------------------------------------------------
    protected function SetSqlLimit(){        
        $req_page_num  = "";
        $req_page_size = $this->GetVariable('page_size');
        $req_p = $this->GetVariable('p');
        if($req_page_size != "") $this->req_page_size = $req_page_size;
        if($req_p != "") $req_page_num  = $req_p;        
        if(is_numeric($req_page_num)){
            if($req_page_num > 0) $this->page_current = $req_page_num;
            else $this->page_current = 1;
        }else{
            $this->page_current = 1;
        }

        // if there was deleted a last rows from a last page
        if(intval($this->rows_total) <= intval(($this->page_current - 1) * $this->req_page_size)){
            if($this->page_current > 1){
                $this->page_current--;
                $_REQUEST[$this->uniquePrefix.'p'] = $this->page_current;
            }
        }       
        
        $this->limit_start = ($this->page_current - 1) * $this->req_page_size;
        $this->limit_size = $this->req_page_size;    
    }

    //--------------------------------------------------------------------------
    // set SQL limit by DB type
    //--------------------------------------------------------------------------
    protected function SetSqlLimitByDbType($limit_start="", $limit_size=""){
        $this->SetSqlLimit();
        if($limit_start == "") $limit_start = $this->limit_start;
        if($limit_size == "") $limit_size = $this->limit_size; 
        $limit_string = "";
        switch($this->db_handler->phptype){
            case "oci8":    // oracle                
                $limit_string = "AND (rownum > ".$limit_start." AND rownum <= ".intval($limit_start + $limit_size).") ";
                break;          
            case "mssql":   // mssql            
                $limit_string = "AND RowNumber > ".$limit_start." AND RowNumber < ".intval($limit_start + $limit_size).") ";
                break;
            case "pgsql":   // Postgresql                
                $limit_string = "OFFSET ".$limit_start." LIMIT ".$limit_size." "; 
                break;                 
            case "mysql":   // mysql and others 
            default:
                $limit_string = "LIMIT ".$limit_start.", ".$limit_size." ";        
                break;            
        }
        return $limit_string;
    }    

    //--------------------------------------------------------------------------
    // set real escape string by DB type
    //--------------------------------------------------------------------------
    protected function SetRealEscapeStringByDbType($field_value = ""){
        switch($this->db_handler->phptype){
            case "mysql":   // mysql 
                return mysql_real_escape_string($field_value);  break;    
            default:
                return $field_value;  break;    
        }        
    }

    //--------------------------------------------------------------------------
    // set SQL by DB type
    //--------------------------------------------------------------------------
    protected function SetSqlByDbType($sql="", $order_by="", $limit=""){
        $sql_string = "";
        switch($this->db_handler->phptype){
            case "oci8":    // oracle                
                if($limit != ""){ 
                    preg_match_all("/\d+/",$limit,$matches); 
                    $limit_start = $matches[0][0]; 
                    $limit_size = $matches[0][1]-$limit_start; 
                    $sql_string = $this->db_handler->modifyLimitQuery($sql." ".$order_by, $limit_start, $limit_size); 
                    if($this->debug) echo "<table><tr><td><b>Oracle sql: </b>".$sql_string."</td></tr></table><br>"; 
                }else{
                    $sql_string = $sql." ".$order_by;
                }
                break;          
            case "mssql":   // mssql            
                //d (10.01.2008) $sql_string = "SELECT ".$limit." ".substr($sql, strpos("select", $this->StrToLower($sql))+7, strlen($sql))." ".$order_by;                
                $from_index = strpos($this->StrToLower($sql), "from ");
                $prefix = substr($sql, 0, $from_index); 
                $suffix = substr($sql, $from_index); 
                $sql_string = $prefix.", Row_Number() over (ORDER BY ".$this->primary_key.") AS RowNumber ".$suffix; 
                $sql_string += " ".$limit." ".$order_by;                
                break;          
            case "mysql":   // mysql and others
            default:
                $sql_string = $sql." ".$order_by." ".$limit;
                break;            
        }
        return $sql_string;        
    }

    //--------------------------------------------------------------------------
    // get LCASE function name by DB type
    //--------------------------------------------------------------------------
    protected function GetLcaseFooByDbType(){
        $lcase_name = "";
        switch($this->db_handler->phptype){
            case "oci8":    // oracle                
                $lcase_name = "lower";  break;          
            case "mssql":   // mssql
                $lcase_name = "LCASE";  break;
            case "pgsql":   // pgsql 
                $lcase_name = "lower";  break;                
            case "mysql":   // mysql and others
            default:
                $lcase_name = "LCASE";  break;            
        }
        return $lcase_name;                
    }    
    
    //--------------------------------------------------------------------------
    // paging function - part 1
    //--------------------------------------------------------------------------
    protected function PagingFirstPart(){        
        // (1) if we got a wrong number of page -> set page=1
        $req_page_num  = "";
        $req_page_size = $this->GetVariable('page_size');
        $req_p = $this->GetVariable('p');
        if(($req_page_size != "") && ($req_page_size != 0)) $this->req_page_size = $req_page_size;
        if($req_p != "") $req_page_num  = $req_p;
        
        if(is_numeric($req_page_num)){
            if($req_page_num > 0) $this->page_current = $req_page_num;
            else $this->page_current = 1;
        }else{
            $this->page_current = 1;
        }
        // (2) set pages_total & page_current vars for paging        
        if($this->rows_total > 0){
            if(is_float($this->rows_total / $this->req_page_size))
                $this->pages_total = intval(($this->rows_total / $this->req_page_size) + 1);
            else
                $this->pages_total = intval($this->rows_total / $this->req_page_size);
        }else{
            $this->pages_total = 0;
        }   
        if($this->page_current > $this->pages_total) $this->page_current = $this->pages_total;
    }

    //--------------------------------------------------------------------------
    // paging function - part 2
    //--------------------------------------------------------------------------    
    protected function PagingSecondPart($lu_paging=false, $upper_br, $lower_br, $type="1"){
        // (4) display paging line
        $req_print = $this->GetVariable('print');
        if($req_print != true) {$a_tag = "a";} else {$a_tag = "span";};
        $text = "";
        $horizontal_align = ($this->tblAlign[$this->mode] == "center") ? "margin-left: auto; margin-right: auto;" : "";

        if($this->pages_total >= 1){
            $href_string = $this->CombineUrl("view", "", "&");
            $this->SetUrlString($href_string, "filtering", "sorting", "");            
            $text .= "\n<script type='text/javascript'>\n<!--\n";
            $text .= "function ".$this->uniquePrefix."setPageSize".$type."(){document.location.href = '$href_string&".$this->uniquePrefix."page_size='+document.frmPaging$this->uniquePrefix".$type.".page_size".$type.".value;}";
            $text .= "\n//-->\n</script>\n";
            $href_string .= $this->amp.$this->uniquePrefix."page_size=".$this->req_page_size;
            $text .= "<form name='frmPaging$this->uniquePrefix".$type."' id='frmPaging$this->uniquePrefix".$type."' action='' style='MARGIN:0px; PADDING:5px; '>";
            if($lu_paging['results'] || $lu_paging['pages'] || $lu_paging['page_size']){
                if($upper_br) $text .= "";  //<br>
            }
            $text .= "<table class='".$this->css_class."_class_paging_table' dir='".$this->direction."' style='".$horizontal_align." width: ".$this->tblWidth[$this->mode].";' border='0' >";
            $text .= "<tr><td align='".$lu_paging['results_align']."' class='class_nowrap'>";
            if($lu_paging['results']){
                $text .= "&nbsp;".$this->lang['results'].":&nbsp;";
                if(($this->page_current * $this->req_page_size) <= $this->rows_total) $total = ($this->page_current * $this->req_page_size);
                else $total = $this->rows_total;
                $text .= ($this->page_current * $this->req_page_size - $this->req_page_size + 1)." - ".$total;
                $text .= "&nbsp;".$this->lang['of']."&nbsp;";
                $text .= $this->rows_total;
                $text .= "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;";            
            }
            $text .= "</td><td align='".$lu_paging['pages_align']."' class='class_nowrap'>";
            if($lu_paging['pages']){
                $text .= "&nbsp;".$this->lang['pages'].":&nbsp;";                
                $href_prev1 = $href_prev2 = $href_first = "";
                if($this->page_current > 1){
                    $href_prev1 = "href='$href_string".$this->amp.$this->uniquePrefix."p=".($this->page_current - 1)."'";
                    $href_prev2 = "href='$href_string".$this->amp.$this->uniquePrefix."p=".$this->page_current."'";
                    $href_first = "href='$href_string".$this->amp.$this->uniquePrefix."p=1'";
                }
                $text .= "&nbsp;<".$a_tag." title='".$this->lang['first']."' class='".$this->css_class."_class_a' style='TEXT-DECORATION: none;' ".$href_first.">".$this->first_arrow."</".$a_tag.">";
                if($this->page_current > 1) $text .= "&nbsp;<".$a_tag." class='".$this->css_class."_class_a' style='TEXT-DECORATION: none;' title='".$this->lang['previous']."' ".$href_prev1.">".$this->previous_arrow."</".$a_tag.">";
                else $text .= "&nbsp;<".$a_tag." class='".$this->css_class."_class_a' style='TEXT-DECORATION: none;' title='".$this->lang['previous']."' ".$href_prev2.">".$this->previous_arrow."</".$a_tag.">";
                $text .= "&nbsp;";
                $low_window_ind = $this->page_current - 3;
                $high_window_ind = $this->page_current + 3;
                if($low_window_ind > 1){ $start_index = $low_window_ind; $text .= "..."; }
                else $start_index = 1;
                if($high_window_ind < $this->pages_total) $end_index = $high_window_ind;
                else $end_index = $this->pages_total;
                for($ind=$start_index; $ind <= $end_index; $ind++){
                    if($ind == $this->page_current) $text .= "&nbsp;<".$a_tag." class='".$this->css_class."_class_a class_underlined' style='TEXT-DECORATION: underline;' title='".$this->lang['current']."' href='$href_string".$this->amp.$this->uniquePrefix."p=".$ind."'><b>" . $ind . "</b></".$a_tag.">";
                    else $text .= "&nbsp;<".$a_tag." class='".$this->css_class."_class_a' style='TEXT-DECORATION: none;' href='$href_string".$this->amp.$this->uniquePrefix."p=".$ind."'>".$ind."</".$a_tag.">";
                    if($ind < $this->pages_total) $text .= ",&nbsp;";
                    else $text .= "&nbsp;";
                }
                if($high_window_ind < $this->pages_total) $text .= "...";
                $href_next1 = $href_next2 = $href_last = "";
                if($this->page_current < $this->pages_total){
                    $href_next1 = "href='$href_string".$this->amp.$this->uniquePrefix."p=".($this->page_current + 1)."'";
                    $href_next2 = "href='$href_string".$this->amp.$this->uniquePrefix."p=".$this->page_current."'";
                    $href_last  = "href='$href_string".$this->amp.$this->uniquePrefix."p=".$this->pages_total."'";
                }
                if($this->page_current < $this->pages_total) $text .= "&nbsp;<".$a_tag." class='".$this->css_class."_class_a' style='TEXT-DECORATION: none;' title='".$this->lang['next']."' ".$href_next1.">".$this->next_arrow."</".$a_tag.">";
                else $text .= "&nbsp;<".$a_tag." class='".$this->css_class."_class_a' style='TEXT-DECORATION: none;' title='".$this->lang['next']."' ".$href_next2.">".$this->next_arrow."</".$a_tag.">";
                $text .= "&nbsp;<".$a_tag." class='".$this->css_class."_class_a' style='TEXT-DECORATION: none;' title='".$this->lang['last']."' ".$href_last.">".$this->last_arrow."</".$a_tag.">";
            }
            $text .= "</td><td align='".$lu_paging['page_size_align']."' class='class_nowrap'>";            
            if($lu_paging['page_size']){
                $text .= "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;";            
                $text .= "&nbsp;".$this->lang['page_size'].":&nbsp;"; 
                $text .= $this->DrawDropDownList('page_size'.$type, 'setPageSize'.$type.'()', $this->pages_array, $this->req_page_size);
            }
            $text .= "</td></tr>";            
            $text .= "</table>";
            $text .= "</form>";
            if($lu_paging['results'] || $lu_paging['pages'] || $lu_paging['page_size']){
                if($lower_br) $text .= ""; //<br>
            }
            echo $text;
        }else{
            echo "<br><br>";    
        }
    }
   
    //--------------------------------------------------------------------------
    // function - set total number of rows in query
    //--------------------------------------------------------------------------
    protected function SetTotalNumberRows($fsort = "", $limit = "", $mode = ""){
        $req_mode = ($mode == "") ? $this->GetVariable('mode') : $mode;
        if(($req_mode == "edit") || ($req_mode == "details")){
            // we need this stupid operation to get a total number of rows in our query
            $this->data_set = & $this->db_handler->query($this->SetSqlByDbType($this->sql, $fsort, $limit));
            $this->rows_total = $this->NumberRows();
        }else{
            $temp_sql = $this->SetSqlByDbType($this->sql, "", "");                
            $from_pos = $this->LastSubStrOccurence($temp_sql, "from ");
            $new_sql = "SELECT count(*) as cnt FROM ".substr($temp_sql, (int)(strlen($temp_sql) - $from_pos), (int)$from_pos);
            $this->data_set = & $this->db_handler->query($new_sql);        
            if($this->db_handler->isError($this->data_set) == 1){
                $this->rows_total = 0;
            }else{
                $row = $this->data_set->fetchRow();                
                $this->rows_total = $row[0];
            }
        }
    }

    //--------------------------------------------------------------------------
    // function - number rows
    //--------------------------------------------------------------------------
    protected function NumberRows(){
        if($this->db_handler->isError($this->data_set)){
            return 0;
        }else{
            return $this->data_set->numRows();
        }        
    }
    
    //--------------------------------------------------------------------------
    // function - number columns
    //--------------------------------------------------------------------------
    protected function NumberCols(){
        if($this->db_handler->isError($this->data_set)){
            return 0;
        }else{
            return $this->data_set->numCols();        
        }        
    }

    //--------------------------------------------------------------------------
    // function - no data found
    //--------------------------------------------------------------------------
    protected function NoDataFound(){
        $NoDataFoundText = ($this->NoDataFoundText != "") ? $this->NoDataFoundText : $this->lang['no_data_found'];
        $this->TblOpen();
        $this->RowOpen(0, $this->rowColor[0]);
            $add_column = 0;
            if((isset($this->modes['add'][$this->mode]) && ($this->modes['add'][$this->mode])) ||
               (isset($this->modes['edit'][$this->mode]) && ($this->modes['edit'][$this->mode]))
              ) $add_column += 1;
            if(isset($this->mode['delete']) && $this->mode['delete']) $add_column += 1;
            $this->ColOpen("center", (count($this->sorted_columns) + $add_column),""); 
                if($this->is_error){
                    echo "<br><span class='".$this->css_class."_class_error_message no_print'>".$this->lang['no_data_found_error']."<br>&nbsp;";
                    if(!$this->debug){ echo "<br>".$this->lang['turn_on_debug_mode']."<br>&nbsp;"; }
                    echo "</span>";
                }else{
                    echo "<br>".$NoDataFoundText."<br>&nbsp;";
                }
            $this->ColClose();                   
        $this->RowClose();
        $this->TblClose();
    }

    //--------------------------------------------------------------------------
    // delete row
    //--------------------------------------------------------------------------
    protected function DeleteRow($rid){
        $req_operation_randomize_code = $this->GetVariable("_operation_randomize_code", true, "post");
        if(!$this->CheckF5CaseValidation($req_operation_randomize_code)) return false;
        if(!$this->CheckSecurityCaseValidation("add", "add_new", "adding")) return false;        
        
        $this->rids = explode("-", $rid);
        $sql = "DELETE FROM $this->tbl_name WHERE $this->primary_key IN ('-1' ";         
        foreach ($this->rids as $key){
            $sql .= ", '".$key."' ";
        }
        $sql .= ");";        
        $this->db_handler->query($sql);
        $affectedRows = $this->db_handler->affectedRows();
        if($affectedRows > 0){
            $this->act_msg = ($this->dg_messages['delete'] != "") ? $this->dg_messages['delete'] : $this->lang['deleting_operation_completed'];                
            if(isset($_SESSION)) { $_SESSION[$this->uniquePrefix.'_operation_randomize_code'] = $req_operation_randomize_code; }
        }else{
            $this->is_warning = true;
            $this->act_msg = $this->lang['deleting_operation_uncompleted'];
            if(isset($_SESSION)) { $_SESSION[$this->uniquePrefix.'_operation_randomize_code'] = ""; }
        }
        if($this->debug) echo "<table width='".$this->tblWidth[$this->mode]."'><tr><td align='left' class='".$this->css_class."_class_error_message no_print' style='COLOR: #333333;'><b>delete sql (".$this->StrToLower($this->lang['total']).": ".$affectedRows.") </b>".$sql."</td></tr></table><br>";        
        if($this->debug) $this->act_msg .= " ".$this->lang['record_n']." ".$this->rid;        
    }

    //--------------------------------------------------------------------------
    // update row
    //--------------------------------------------------------------------------
    protected function UpdateRow($rid){
        $req_operation_randomize_code = $this->GetVariable("_operation_randomize_code", true, "post");
        if(!$this->CheckF5CaseValidation($req_operation_randomize_code)) return false;
        if(!$this->CheckSecurityCaseValidation("add", "add_new", "adding")) return false;        
        
        $unique_field_found = false;
        $field_header = "";
        $field_count = "0";        
        
        // check for unique fields
        foreach($this->columns_edit_mode as $fldName => $fldValue){
            if(($fldName != "") && ($this->GetFieldProperty($fldName, "unique") == true)){
                $field_prefix = "syy";                    
                if(isset($fldValue['req_type'])){
                    if(strlen(trim($fldValue['req_type'])) == 3){ $field_prefix = $fldValue['req_type']; }
                    else if(strlen(trim($fldValue['req_type'])) == 2){ $field_prefix = $fldValue['req_type']."y"; }
                }                
                $field_header =     (isset($fldValue['header'])) ? $fldValue['header'] : $fldName;
                $unique_condition = (isset($fldValue['unique_condition'])) ? trim($fldValue['unique_condition']) : "" ;
                $field_value =      (isset($_POST[$field_prefix.$fldName])) ? $_POST[$field_prefix.$fldName] : "";                                 
                $sql = "SELECT COUNT(*) as count FROM $this->tbl_name WHERE $this->primary_key <> '$rid' AND $fldName = '$field_value'";
                if($unique_condition != "") $sql .= " AND ".$unique_condition." ";
                if(($field_count = $this->SelectSqlItem($sql)) > 0){
                    $unique_field_found = true;
                    break;
                }
            }            
        }
        // create update statment
        if(!$unique_field_found){
            $sql = "UPDATE $this->tbl_name SET ";
                $ind = 0;
                $this->AddCheckBoxesValues();            
                $max = count($_POST);
                foreach($_POST as $fldName => $fldValue){
                    // update all fields, excepting uploading fields                    
                    if(!strpos($fldName, "file_act") && !strpos($fldName, "_operation_randomize_code")){
                        $fldName = substr($fldName, 3, strlen($fldName));
                        $fldValue = $this->IsDatePrepare($fldName,$fldValue);
                        if(!$this->IsReadonly($fldName) && !$this->IsValidator($fldName)){
                            if (intval($ind) >= 1) $sql .= ", ";
                            if($this->IsText($fldName)){
                                $fldValue_new = $fldValue;
                                if(is_array($fldValue)){    // it was a multiple enum
                                    $count = 0; $fldValue_new = "";
                                    foreach ($fldValue as $val){ if($count++ > 0) $fldValue_new .= ","; $fldValue_new .= $val; }
                                }
                                $sql .= "$fldName = '".$this->SetRealEscapeStringByDbType($fldValue_new)."' ";
                            }else{
                                $sql .= (trim($fldValue) != "") ? "$fldName = $fldValue " : "$fldName = 0 ";
                            }
                            //if ((intval($ind) === 0) && ($max > 1)) $sql .= ", ";
                            $ind++;                            
                        }                        
                    }
                }
            $sql .= " WHERE $this->primary_key = '$rid' ";
            $this->db_handler->query($sql);
            $affectedRows = $this->db_handler->affectedRows();
            if($affectedRows >= 0){
                $this->act_msg = ($this->dg_messages['update'] != "") ? $this->dg_messages['update'] : $this->lang['updating_operation_completed'];                
                if(isset($_SESSION)) { $_SESSION[$this->uniquePrefix.'_operation_randomize_code'] = $req_operation_randomize_code; }
            }else{
                $this->is_warning = true;
                $this->act_msg = $this->lang['updating_operation_uncompleted'];
                if(isset($_SESSION)) { $_SESSION[$this->uniquePrefix.'_operation_randomize_code'] = ""; }
            }
            if($this->debug) echo "<table width='".$this->tblWidth[$this->mode]."'><tr><td align='left' class='".$this->css_class."_class_error_message no_print' style='COLOR: #333333;'><b>update sql (".$this->StrToLower($this->lang['total']).": ".$affectedRows.") </b>".$sql."</td></tr></table><br>";                    
        }else{
            $this->is_warning = true;            
            $this->act_msg = str_replace("_FIELD_", $field_header, $this->lang['unique_field_error']);               
            if($this->debug) echo "<table width='".$this->tblWidth[$this->mode]."'><tr><td align='left' class='".$this->css_class."_class_error_message no_print' style='COLOR: #333333;'><b>select sql (".$this->StrToLower($this->lang['total']).": ".$field_count.") </b>".$sql."</td></tr></table><br>";                    
        }
        if($this->debug) $this->act_msg .= " ".$this->lang['record_n']." ".$this->rid;        
    }

    //--------------------------------------------------------------------------
    // add row
    //--------------------------------------------------------------------------
    protected function AddRow(){
        $req_operation_randomize_code = $this->GetVariable("_operation_randomize_code", true, "post");
        if(!$this->CheckF5CaseValidation($req_operation_randomize_code)) return false;
        if(!$this->CheckSecurityCaseValidation("add", "add_new", "adding")) return false;        
        
        $unique_field_found = false;
        $field_header = "";
        $field_count = "0";
        
        // check for unique fields
        foreach($this->columns_edit_mode as $fldName => $fldValue){
            if(($fldName != "") && ($this->GetFieldProperty($fldName, "unique") == true)){
                $field_prefix = "syy";                    
                if(isset($fldValue['req_type'])){
                    if(strlen(trim($fldValue['req_type'])) == 3){ $field_prefix = $fldValue['req_type']; }
                    else if(strlen(trim($fldValue['req_type'])) == 2){ $field_prefix = $fldValue['req_type']."y"; }
                }                
                $field_header =     (isset($fldValue['header'])) ? $fldValue['header'] : $fldName;
                $unique_condition = (isset($fldValue['unique_condition'])) ? trim($fldValue['unique_condition']) : "" ;
                $field_value =      (isset($_POST[$field_prefix.$fldName])) ? $_POST[$field_prefix.$fldName] : "";                                 
                $sql = "SELECT COUNT(*) as count FROM $this->tbl_name WHERE $fldName = '$field_value' ";
                if($unique_condition != "") $sql .= " AND ".$unique_condition." ";
                if(($field_count = $this->SelectSqlItem($sql)) > 0){
                    $unique_field_found = true;
                    break;
                }
            }            
        }
        // create insert statment
        if(!$unique_field_found){
            $this->AddCheckBoxesValues();                    
            $sql = "INSERT INTO $this->tbl_name (";
                $ind = 0;
                $max = count($_POST);
                foreach($_POST as $fldName => $fldValue){
                    $ind ++;
                    // all fields, excepting uploading fields
                    if(!strpos($fldName, "file_act") && !strpos($fldName, "_operation_randomize_code")){
                        if(!$this->IsValidator($fldName)){
                            $fldName = substr($fldName, 3, strlen($fldName));
                            $sql .= "$fldName";
                            if (intval($ind) < intval($max) ) $sql .= ", ";
                        }
                    }
                }
            $sql .= ") VALUES (";
                $ind = 0;
                $max = count($_POST);
                foreach($_POST as $fldName => $fldValue){
                    $ind ++;
                    // all fields, excepting uploading fields
                    if(!strpos($fldName, "file_act") && !strpos($fldName, "_operation_randomize_code")){
                        if(!$this->IsValidator($fldName)){
                            $fldName = substr($fldName, 3, strlen($fldName));                    
                            $fldValue = $this->IsDatePrepare($fldName,$fldValue);                            
                            if($this->IsText($fldName)) {                        
                                if($fldValue != ""){
                                    $fldValue_new = $fldValue;
                                    if(is_array($fldValue)){    // it was a multiple enum
                                        $count = 0; $fldValue_new = "";
                                        foreach ($fldValue as $val){ if($count++ > 0) $fldValue_new .= ","; $fldValue_new .= $val; }
                                    }                                        
                                    $sql .=  "'".$this->SetRealEscapeStringByDbType($fldValue_new)."'";
                                }else if($this->IsFieldRequired($fldName)){
                                    $sql .= "' '";    
                                }else{
                                    $sql .= "''";    
                                }                        
                            }else{
                                if(trim($fldValue) != ""){
                                    $sql .=  $fldValue;
                                }else if($this->IsFieldRequired($fldName)){
                                    $sql .= '0';    
                                }else{
                                    $sql .= 'NULL';    
                                }                        
                            }
                            if (intval($ind) < intval($max) ) $sql .= ", ";
                        }                        
                    }
                }
            $sql .= ") ";
            $dSet = $this->db_handler->query($sql);
            
            $affectedRows = $this->db_handler->affectedRows();
            if($this->debug) echo "<table width='".$this->tblWidth[$this->mode]."'><tr><td align='left'><b>insert sql (".$this->StrToLower($this->lang['total']).": ".$affectedRows.") </b>".$sql."</td></tr></table><br>";
                
            if($affectedRows > 0){
                $this->act_msg = ($this->dg_messages['add'] != "") ? $this->dg_messages['add'] : $this->lang['adding_operation_completed'];                
                $res = $this->db_handler->query("SELECT MAX(".$this->primary_key.") as maximal_row FROM ".$this->tbl_name." ");
                $row = $res->fetchRow();
                $this->rid = $row[0];
                if($this->debug){
                    $this->act_msg .= " ".$this->lang['record_n']." ".$this->rid;
                }  
                if(isset($_SESSION)) { $_SESSION[$this->uniquePrefix.'_operation_randomize_code'] = $req_operation_randomize_code; }
            }else{
                $this->is_warning = true;            
                $this->act_msg = $this->lang['adding_operation_uncompleted'];
                if($this->db_handler->isError($dSet) == 1){
                    $this->is_error = true;
                    $this->AddErrors($dSet);
                }
                if(isset($_SESSION)) { $_SESSION[$this->uniquePrefix.'_operation_randomize_code'] = ""; }                
            }            
        }else{
            $this->is_warning = true;            
            $this->act_msg = str_replace("_FIELD_", $field_header, $this->lang['unique_field_error']);               
            if($this->debug) echo "<table width='".$this->tblWidth[$this->mode]."'><tr><td align='left'><b>select sql (".$this->StrToLower($this->lang['total']).": ".$field_count.") </b>".$sql."</td></tr></table><br>";                                
        }          

        $this->sql = "SELECT * FROM $this->tbl_name ";       
        $fsort = " ORDER BY " . $this->primary_key . " DESC";        
        $this->GetDataSet($fsort);
    }   

    //--------------------------------------------------------------------------
    // check for F5 refresh case
    //--------------------------------------------------------------------------
    protected function CheckF5CaseValidation($req_operation_randomize_code = ""){
        if(isset($_SESSION[$this->uniquePrefix.'_operation_randomize_code']) && $req_operation_randomize_code != "" && ($_SESSION[$this->uniquePrefix.'_operation_randomize_code'] == $req_operation_randomize_code)){
            $this->is_warning = true;            
            $this->act_msg = $this->lang['operation_was_already_done'];
            return false;
        } return true;
    }

    //--------------------------------------------------------------------------
    // check for security case
    //--------------------------------------------------------------------------
    protected function CheckSecurityCaseValidation($mode = "", $operation = "", $gerundy = ""){
        if(($this->modes[$mode]["view"] == false) && ($this->modes[$mode]["edit"] == false)){
            $this->is_warning = true;            
            if($this->debug){
                $this->act_msg = $this->lang[$operation.'_record_blocked'];
            }else{
                $this->act_msg = $this->lang[$gerundy.'_operation_uncompleted'];
            }
            return false;
        } return true;        
    }

    //--------------------------------------------------------------------------
    // get field offset
    //--------------------------------------------------------------------------
    protected function GetFieldOffset($field_name){
        if(!$this->is_error){
            $fields = $this->data_set->tableInfo();
            for($ind=0; $ind < $this->data_set->numCols(); $ind++){
                if($fields[$ind]['name'] === $field_name) return $ind;  
            }            
        }
        return -1;
    }

    //--------------------------------------------------------------------------
    // is field required
    //--------------------------------------------------------------------------
    protected function IsFieldRequired($field){        
        if(!$this->is_error){
            $fields = $this->data_set->tableInfo();                        
            if($this->GetFieldOffset($field) != -1){
                $flags = $fields[$this->GetFieldOffset($field)]['flags'];
                //echo $fields[$this->GetFieldOffset($field)]['type']." ".$flags."<br>";
                if(strstr(strtolower($flags), "not_null")){
                    return true;   
                }
            }
        }
        return false;
    }

    //--------------------------------------------------------------------------
    // get field info
    //--------------------------------------------------------------------------
    protected function GetFieldInfo($field, $parameter='', $type=0){        
        if(!$this->is_error){
            $fields = $this->data_set->tableInfo();            
            if($type == 0){
                if($this->GetFieldOffset($field) != -1)
                   return $fields[$this->GetFieldOffset($field)][$parameter];
                else
                   return '';
            }else{
                return $fields[$field][$parameter];
            }
        }
        return -1;
    }   
   
    //--------------------------------------------------------------------------
    // set Datetime field in right format (dd-mm-yyyy)|(yyyy-mm-dd)
    //--------------------------------------------------------------------------
    protected function IsDatePrepare($field_name, $fldValue){
        $field_property_type = $this->GetFieldProperty($field_name, "type");
        switch ($field_property_type){
            case 'date':        // date: DATE
            case 'datetime':    // date: DATE
                break;
            case 'datetimedmy': // date: DATETIME
                $time1   = substr(trim($fldValue), 10, 9);
                $year1   = substr(trim($fldValue), 6, 4);
                $month1  = substr(trim($fldValue), 3, 2);
                $day1    = substr(trim($fldValue), 0, 2);
                $fldValue   = $year1."-".$month1."-".$day1." ".$time1;
                break;
            case 'datedmy':    // date: DATE
                $year1   = substr(trim($fldValue), 6, 4);
                $month1  = substr(trim($fldValue), 3, 2);
                $day1    = substr(trim($fldValue), 0, 2);
                $fldValue   = $year1."-".$month1."-".$day1;
                break;
            default:
                break;
        }
        return $fldValue;
    }

    //--------------------------------------------------------------------------
    // check if field type needs ''(text) or not (numeric...)
    //--------------------------------------------------------------------------
    protected function IsText($field_name){
        $field_type = $this->GetFieldInfo($field_name, 'type', 0);
        $result = true;
        switch (strtolower($field_type)){
            case 'int':     // int: TINYINT, SMALLINT, MEDIUMINT, INT, INTEGER, BIGINT, TINY, SHORT, LONG, LONGLONG, INT24
            case 'real':    // real: FLOAT, DOUBLE, DECIMAL, NUMERIC
            case 'null':    // empty: NULL            
                $result = false; break;
            case 'string':  // string: CHAR, VARCHAR, TINYTEXT, TEXT, MEDIUMTEXT, LONGTEXT, ENUM, SET, VAR_STRING
            case 'blob':    // blob: TINYBLOB, MEDIUMBLOB, LONGBLOB, BLOB, TEXT
            case 'date':    // date: DATE
            case 'timestamp':    // date: TIMESTAMP
            case 'year':    // date: YEAR
            case 'time':    // date: TIME
            case 'datetime':    // date: DATETIME
                $result = true; break;
            default:
                $result = true; break;
        }
        return $result;
    }

    //--------------------------------------------------------------------------
    // check if field type is a date/time type
    //--------------------------------------------------------------------------
    protected function IsDate($field_name){
        $field_type = $this->GetFieldInfo($field_name, 'type', 0);
        $result = false;
        switch (strtolower($field_type)){
            case 'date':    // date: DATE
            case 'timestamp':    // date: TIMESTAMP
            case 'year':    // date: YEAR
            case 'time':    // date: TIME
            case 'datetime':    // date: DATETIME
                $result = true; break;
            default:
                $result = false; break;
        }
        return $result;
    }

    //--------------------------------------------------------------------------
    // check if a field is readonly
    //--------------------------------------------------------------------------
    protected function IsReadonly($field_name){
        $field_property_readonly = $this->GetFieldProperty($field_name, "readonly");
        if($field_property_readonly == true){
            return true;
        }else{
            return false;
        }
    }    

    //--------------------------------------------------------------------------
    // check if a field is validator
    //--------------------------------------------------------------------------
    protected function IsValidator($field_name){
        $validator_letter = substr($field_name, 1, 1);
        $validator_field = substr($field_name, 3, strlen($field_name));
        if($validator_letter == "v"){
            foreach($this->columns_edit_mode as $key){
                if($key['type'] == "validator" && $key['for_field'] == $validator_field){
                    return true;        
                }
            }            
        }
        return false;
    }    

    //--------------------------------------------------------------------------
    // check if a field is a foreign key
    //--------------------------------------------------------------------------
    protected function IsForeignKey($field_name){
        if(array_key_exists($field_name, $this->foreign_keys_array)){
           return true; 
        }
        return false;
    }

    //--------------------------------------------------------------------------
    // get foreign key input
    //--------------------------------------------------------------------------
    protected function GetForeignKeyInput($keyFieldValue, $fk_field_name, $fk_field_value, $mode="edit"){
        $req_mode = $this->GetVariable('mode');

        // check if foreign key field is readonly or disabled
        $readonly = "";
        $disabled = "";
        $field_property_readonly = $this->GetFieldProperty($fk_field_name, "readonly");
        $field_property_radiobuttons_alignment = "horizontal";        
        if(isset($this->foreign_keys_array[$fk_field_name]['radiobuttons_alignment']) && (strtolower($this->foreign_keys_array[$fk_field_name]['radiobuttons_alignment']) == "vertical")){
            $field_property_radiobuttons_alignment = "vertical";        
        }
        if($req_mode == "edit"){
            if($field_property_readonly == true){                
                $disabled = "disabled"; //$readonly = "readonly='readonly'";
            }
        }
        
        $sql  = " SELECT ".$fk_field_name;
        $sql .= " FROM ".$this->tbl_name;
        $sql .= " WHERE ".$this->primary_key." = '".$keyFieldValue."' ";
        $this->db_handler->setFetchMode(DB_FETCHMODE_ASSOC);
        $dSet = $this->db_handler->query($sql);        
        if($dSet->numRows() > 0){
            $row = $dSet->fetchRow();            
            $kFieldValue = $row[$fk_field_name];
        }else{
            $kFieldValue = -1;
        }
        // select from outer table
        $sql  = " SELECT ".$this->foreign_keys_array[$fk_field_name]['field_key'].",".$this->foreign_keys_array[$fk_field_name]['field_name']." ";
        $sql .= " FROM ".$this->foreign_keys_array[$fk_field_name]['table'] ;
        $sql .= " WHERE 1=1 ";
        if($mode !== "edit"){
            $sql .= " AND " .$this->foreign_keys_array[$fk_field_name]['field_key']."='".$kFieldValue."'";
        }
        if(isset($this->foreign_keys_array[$fk_field_name]['condition']) && ($this->foreign_keys_array[$fk_field_name]['condition'] != "")){
            $sql .= " AND " .$this->foreign_keys_array[$fk_field_name]['condition'];
        }
        // define sorting order
        if(isset($this->foreign_keys_array[$fk_field_name]['order_by_field']) && ($this->foreign_keys_array[$fk_field_name]['order_by_field'] != "")){
            $order_by_field = $this->foreign_keys_array[$fk_field_name]['order_by_field'];
        }else{
            $order_by_field = $this->foreign_keys_array[$fk_field_name]['field_key'];
        }
        // define sorting type
        if(isset($this->foreign_keys_array[$fk_field_name]['order_type']) && ($this->foreign_keys_array[$fk_field_name]['order_type'] != "")){
            $order_type = $this->foreign_keys_array[$fk_field_name]['order_type'];
        }else{
            $order_type = "ASC";
        }
        $sql .= " ORDER BY ".$order_by_field." ".$order_type;
        
        $dSet = $this->db_handler->query($sql);

        if($this->db_handler->isError($dSet) == 1){
            $this->is_error = true;
            $this->AddErrors($dSet);
        }
       
        if($this->debug){
            if($this->db_handler->isError($dSet) == 1){
                $num_rows = 0; 
            }else{
                $num_rows = $dSet->numRows();                
            }
            echo "<table width='".$this->tblWidth[$this->mode]."'><tr><td align='left' wrap><b>search sql (".$this->StrToLower($this->lang['total']).": ".$num_rows.") </b>". $sql."</td></tr></table><br>";            
        }       
      
        if($mode === "edit"){            
            // save entered values from fields in add/edit modes
            $req_field_value = $this->GetVariable($this->GetFieldRequiredType($fk_field_name).$fk_field_name, false, "post");            

            $on_js_event = (isset($this->foreign_keys_array[$fk_field_name]['on_js_event'])) ? $this->foreign_keys_array[$fk_field_name]['on_js_event'] : "";
            $view_type = (isset($this->foreign_keys_array[$fk_field_name]['view_type'])) ? $this->foreign_keys_array[$fk_field_name]['view_type'] : "";            
            if($view_type == "textbox"){ //'view_type"=>"textbox"
                while($row = $dSet->fetchRow()){
                    $ff_name = $this->foreign_keys_array[$fk_field_name]['field_name'];
                    if(eregi(" as ", strtolower($ff_name))) $ff_name = substr($ff_name, strpos(strtolower($ff_name), " as ")+4);
                    if($row[$ff_name] === $kFieldValue){
                        $kFieldValue = $row[$ff_name];
                        $kFieldValue = str_replace('"', "&quot;", $kFieldValue); // double quotation mark
                        $kFieldValue = str_replace("'", "&#039;", $kFieldValue); // single quotation mark                        
                    }
                }
                return "<input class='".$this->css_class."_class_textbox' type='text' title='".$this->GetFieldTitle($fk_field_name)."' id='".$this->GetFieldRequiredType($fk_field_name).$fk_field_name."' name='".$this->GetFieldRequiredType($fk_field_name).$fk_field_name."' value='".$kFieldValue."' $disabled ".$on_js_event.">";
            }else if($view_type == "radiobutton"){ //'view_type"=>"radiobutton"            
                return $this->DrawRadioButtons($this->GetFieldRequiredType($fk_field_name).$fk_field_name, $fk_field_name, $dSet, $kFieldValue, 'field_key', 'field_name', $disabled, $on_js_event, $field_property_radiobuttons_alignment);
            }else { //'view_type"=>"dropdownlist" - default   
                $req_field_name = $this->GetVariable($this->GetFieldRequiredType($fk_field_name).$fk_field_name, false, "post");                
                if($req_mode == "add"){
                    if($req_field_name != "") $req_field_value = $req_field_value;
                    else $req_field_value = $this->GetFieldProperty($fk_field_name, "default");
                }else {
                    if($req_field_name != "") $req_field_value = $req_field_value;                   
                    else $req_field_value = $fk_field_value;
                }
                return $this->DrawDropDownList($this->GetFieldRequiredType($fk_field_name).$fk_field_name, '', $dSet, $req_field_value, $fk_field_name, 'field_key', 'field_name', $disabled, $on_js_event);
            }
        }else{
            if(!isset($dSet->message) || $dSet->message == ""){            
                $row = $dSet->fetchRow();
                $ff_name = $this->foreign_keys_array[$fk_field_name]['field_name']; 
                if (eregi(" as ", strtolower($ff_name))) $ff_name = substr($ff_name, strpos(strtolower($ff_name), " as ")+4); 
                return $this->nbsp.$row[$ff_name].$this->nbsp;                 
            }else{
                if(isset($dSet->message)){ echo $dSet->message; }
                if(isset($dSet->userinfo)){ echo $dSet->userinfo; }
                return "";
            }
        }        
    }

    ////////////////////////////////////////////////////////////////////////////
    // URL string creating
    ////////////////////////////////////////////////////////////////////////////
    //--------------------------------------------------------------------------
    // setUrl
    //--------------------------------------------------------------------------  
    protected function SetUrlString(&$curr_url, $filtering = "", $sorting = "", $paging ="", $amp=""){
        $amp = ($amp != "") ? $amp : $this->amp;
        if($filtering != "") $this->SetUrlStringFiltering($curr_url, $amp);
        if($sorting != "") $this->SetUrlStringSorting($curr_url, $amp);
        if($paging != "") $this->SetUrlStringPaging($curr_url, $amp);        
    }
    
    //--------------------------------------------------------------------------
    // SetUrlString Filtering
    //--------------------------------------------------------------------------  
    protected function SetUrlStringFiltering(&$curr_url, $amp=""){
        $amp = ($amp != "") ? $amp : $this->amp;
        $req_onSUBMIT_FILTER = $this->GetVariable('_ff_onSUBMIT_FILTER');
        
        if($this->filtering_allowed){
            foreach($this->filter_fields as $fldField){
                $table_field_name = "".$fldField['table']."_".$fldField['field'];
                $filter_field_value = isset($_REQUEST[$this->uniquePrefix."_ff_".$table_field_name]) ? stripcslashes($_REQUEST[$this->uniquePrefix."_ff_".$table_field_name]) : "";
                if($filter_field_value != ""){
                    $curr_url .= $amp.$this->uniquePrefix."_ff_".$fldField['table'].'_'.$fldField['field']."=".urlencode($filter_field_value)."";
                }
                $table_field_name_operator = "".$fldField['table']."_".$fldField['field']."_operator";
                if(isset($_REQUEST[$this->uniquePrefix."_ff_".$table_field_name_operator]) AND ($_REQUEST[$this->uniquePrefix."_ff_".$table_field_name_operator] != "")){
                    $curr_url .= $amp.$this->uniquePrefix."_ff_".$fldField['table'].'_'.$fldField['field']."_operator=".urlencode($_REQUEST[$this->uniquePrefix."_ff_".$table_field_name_operator])."";
                }
            }
            if(isset($_REQUEST[$this->uniquePrefix."_ff_".'selSearchType']) && (trim($_REQUEST[$this->uniquePrefix."_ff_".'selSearchType']) != ""))
                $curr_url .= $amp.$this->uniquePrefix."_ff_"."selSearchType=".urlencode($_REQUEST[$this->uniquePrefix."_ff_".'selSearchType'])."";            
            if($req_onSUBMIT_FILTER != "")
                $curr_url .= $amp.$this->uniquePrefix."_ff_"."onSUBMIT_FILTER=search";    
        }
    }

    //--------------------------------------------------------------------------
    // SetUrlString Sorting 
    //--------------------------------------------------------------------------  
    protected function SetUrlStringSorting(&$curr_url, $amp=""){
        $amp = ($amp != "") ? $amp : $this->amp;
        $sort_field = $this->GetVariable('sort_field');
        $sort_field_by = $this->GetVariable('sort_field_by');
        $sort_field_type = $this->GetVariable('sort_field_type');
        $sort_type = $this->GetVariable('sort_type');                
        if($sort_field != "") {
           $this->sort_field = $sort_field;
           $this->sort_field_by = $sort_field_by;
           $this->sort_field_type = $sort_field_type;
           $curr_url .= $amp.$this->uniquePrefix."sort_field=".$this->sort_field.$amp.$this->uniquePrefix."sort_field_by=".$this->sort_field_by.$amp.$this->uniquePrefix."sort_field_type=".$this->sort_field_type;
        }else {
            if(!is_numeric($this->default_sort_field[0])){ $this->default_sort_field[0] = $this->GetFieldOffset($this->default_sort_field[0]) + 1; }
            $curr_url .= $amp.$this->uniquePrefix."sort_field=".$this->default_sort_field[0];
        }; // make pKey      
        if($sort_type != "") {
            $this->sort_type = $sort_type;
            $curr_url .= $amp.$this->uniquePrefix."sort_type=".$this->sort_type;
        } else {
            $curr_url .= $amp.$this->uniquePrefix."sort_type=".$this->default_sort_type[0];
        };          
    }

    //--------------------------------------------------------------------------
    // SetUrlString Pading
    //--------------------------------------------------------------------------  
    protected function SetUrlStringPaging(&$curr_url, $amp=""){
        $amp = ($amp != "") ? $amp : $this->amp;
        $page_size = $this->GetVariable('page_size');
        $p = $this->GetVariable('p');
        if($this->layouts['edit'] == "0"){            
            if($page_size != ""){
                $this->req_page_size = $page_size;
                $curr_url .= $amp.$this->uniquePrefix."page_size=".$this->req_page_size;
            }else{ 
                $curr_url .= $amp.$this->uniquePrefix."page_size=".$this->req_page_size;
            }            
        }else{            
            if($this->mode === "view"){
                $curr_url .= $amp.$this->uniquePrefix."page_size=".$this->req_page_size;
            }else{ 
                if($page_size != ""){
                    $this->req_page_size = $page_size;
                }else{
                    if($this->mode == "edit"){
                        $this->req_page_size = $this->default_page_size;
                    }
                }
                $curr_url .= $amp.$this->uniquePrefix."page_size=".$this->req_page_size;
            }
        }
        if($p != "") {
            $this->page_current = $p;
            $curr_url .= $amp.$this->uniquePrefix."p=".$this->page_current;
        }else {
            $this->page_current = 1;
            $curr_url .= $amp.$this->uniquePrefix."p=1";
        };
    } 

    ////////////////////////////////////////////////////////////////////////////
    // View & Edit mode methods
    ////////////////////////////////////////////////////////////////////////////
    //--------------------------------------------------------------------------
    // get enum values
    //--------------------------------------------------------------------------
    protected function GetEnumValues( $table , $field ){
        $enum_array = "";
        $query = " SHOW COLUMNS FROM $table LIKE '$field' ";
        $this->db_handler->setFetchMode(DB_FETCHMODE_ORDERED);  
        $result = $this->db_handler->query($query);        
        if($row = $result->fetchRow()){            
            // extract the values, the values are enclosed in single quotes and separated by commas
            $regex = "/'(.*?)'/";
            preg_match_all( $regex , $row[1], $enum_array );            
            $temp_enum_fields = $enum_array[1];
            $enum_fields = array();
            foreach($temp_enum_fields as $key => $val){
                $enum_fields[$val] = $val;
            }
            return $enum_fields ;
        }else{
            return array();
        }
    } 
  
    //--------------------------------------------------------------------------
    // check if field exists & can be viewed
    //--------------------------------------------------------------------------
    protected function CanViewField($field_name){
        $field_property_visible =  $this->GetFieldProperty($field_name, "visible", $this->mode, "lower", "true");
        if($this->mode === "view"){
            if(array_key_exists($field_name, $this->columns_view_mode) && ($field_property_visible == true)) return true;    
        }else if($this->mode === "edit"){
            if(array_key_exists($field_name, $this->columns_edit_mode) && ($field_property_visible == true)) return true;    
        }else if($this->mode === "details"){
            if(array_key_exists($field_name, $this->columns_edit_mode) && ($field_property_visible == true)) return true;    
        }
        return false;
    }
    //--------------------------------------------------------------------------
    // check if field exists & can be viewed
    //--------------------------------------------------------------------------
    protected function GetHeaderName($field_name, $force_simple = false){
        $force_simple = (($force_simple == true) || ($force_simple == "true")) ? true : false ;
        $field_property_header = $this->GetFieldProperty($field_name, "header", $this->mode, "normal");
        if($this->mode === "view"){
            if(array_key_exists($field_name, $this->columns_view_mode) && ($field_property_header != "")){
                return $field_property_header;
            }
        }else if($this->mode === "edit"){
            if(array_key_exists($field_name, $this->columns_edit_mode) && ($field_property_header != "")){
                if((substr($this->GetFieldRequiredType($field_name), 0, 1) == "r") && (!$force_simple)){
                    return ucfirst($field_property_header)." <font color='#cd0000'>*</font> ";
                }else{
                    return $field_property_header;
                }
            }                
        }else if($this->mode === "details"){
            if(array_key_exists($field_name, $this->columns_edit_mode) && ($field_property_header != "")){
                return $field_property_header;
            }
        }        
        return $field_name;
    }

    //--------------------------------------------------------------------------
    // Returns field name
    //--------------------------------------------------------------------------
    protected function GetFieldName($field_offset){
        if(!$this->is_error){
            $fields = $this->data_set->tableInfo();
            $field_name = isset($fields[$field_offset]['name']) ? $fields[$field_offset]['name'] : "";        
            if($field_name) return $field_name;
        }
        return $field_offset;
    }  

    //--------------------------------------------------------------------------
    // get Field Required Type
    //--------------------------------------------------------------------------
    protected function GetFieldRequiredType($field_name, $validator=false){
        $field_prefix = "syy";
        $field_req_type = trim($this->GetFieldProperty($field_name, "req_type"));
        if($field_req_type != ""){
            if(strlen($field_req_type) == 3){ $field_prefix = $field_req_type; }
            else if(strlen($field_req_type) == 2){
                $field_prefix = $field_req_type."y";
            }
        }
        if($validator) $field_prefix[1] = "v";
        return $field_prefix;
    }

    //--------------------------------------------------------------------------
    // get Field Property
    //--------------------------------------------------------------------------
    protected function GetFieldProperty($field_name, $property_name, $mode = "edit", $case = "normal", $return_value = ""){
        switch($mode){
            case "view":
                if(isset($this->columns_view_mode[$field_name][$property_name])){
                    if($case === "lower") {
                        $return_value =  strtolower($this->columns_view_mode[$field_name][$property_name]);
                    } else {
                        $return_value = $this->columns_view_mode[$field_name][$property_name];
                    }
                }            
                break;
            case "filter":
                if(isset($this->filter_fields[$field_name][$property_name])){
                    if($case === "lower") {
                        $return_value = strtolower($this->filter_fields[$field_name][$property_name]);
                    } else {
                        $return_value = $this->filter_fields[$field_name][$property_name];
                    }
                }            
                break;
            case "details":
            case "edit":
            default:
                if(isset($this->columns_edit_mode[$field_name][$property_name])){
                    if($case === "lower") {                        
                        if(is_array($this->columns_edit_mode[$field_name][$property_name])){
                            return $this->columns_edit_mode[$field_name][$property_name];
                        }else{
                            $return_value = strtolower($this->columns_edit_mode[$field_name][$property_name]);
                        }                        
                    } else {
                        $return_value = $this->columns_edit_mode[$field_name][$property_name];
                    }
                }
                break;
        }        
        if($return_value == "true"){
            $return_value = true;
        }else if($return_value == "false"){
            $return_value = false;
        }
        return $return_value;        
    }

    //--------------------------------------------------------------------------
    // get Field Title
    //--------------------------------------------------------------------------
    protected function GetFieldTitle($field_name, $mode="edit"){
        $field_title = $this->GetFieldProperty($field_name, "title", $mode, "");
        if($field_title === ""){
            $field_header = $this->GetFieldProperty($field_name, "header", $mode);
            if($field_header === ""){
                return $field_name;            
            }else{
                return str_replace("'", "&#039;", $field_header);            
            }            
        }else{
            return $field_title;
        }
    }

    //--------------------------------------------------------------------------
    // get Field Alignment
    //--------------------------------------------------------------------------
    protected function GetFieldAlign($ind, $row, $mode="view"){
        $field_name = $this->GetFieldName($ind);
        $field_align = $this->GetFieldProperty($field_name, "align", $mode);
        if(($mode == "view") && ($field_align != "")){
            return $field_align;
        }else if(($mode != "view") && ($field_align != "")){ 
            return $field_align;            
        }else{            
            if(isset($row[$ind]) && $this->IsText($field_name)){
                return ($this->direction == "ltr")?"left":"right";
            }else{
                return ($this->direction == "ltr")?"right":"left";
            }
        }
    }

    //--------------------------------------------------------------------------
    // get Field Value By Type
    //--------------------------------------------------------------------------
    protected function GetFieldValueByType($field_value, $ind, $row, $field_name="", $m_field_req_type=""){
        // Un-quote string quoted by mysql_real_escape_string()
        if(get_magic_quotes_gpc()) {
            if(ini_get('magic_quotes_sybase')) {
                $field_value = str_replace("''", "'", $field_value);
            } else {                
                $field_value = str_replace("''", "'", $field_value);                
                $field_value = stripslashes($field_value);
            }
        }        
        
        $req_print = $this->GetVariable('print');
        $req_mode = $this->GetVariable('mode');       
      
        if($field_name == "") $field_name = $this->GetFieldName($ind);
        // -= VIEW MODE =-
        if($this->mode === "view"){
            if(array_key_exists($field_name, $this->columns_view_mode)){
                
                $fp_tooltip = $this->GetFieldProperty($field_name, "tooltip", "view");
                $fp_tooltip_type = $this->GetFieldProperty($field_name, "tooltip_type", "view");
                $field_property_pre_addition   = $this->GetFieldProperty($field_name, "pre_addition", "view");
                $field_property_post_addition  = $this->GetFieldProperty($field_name, "post_addition", "view");
                $field_property_on_item_created = $this->GetFieldProperty($field_name, "on_item_created", "view");
                $field_property_text_length    = $this->GetFieldProperty($field_name, "text_length", "view");
                $field_property_type           = $this->GetFieldProperty($field_name, "type", "view");
                $field_property_case           = $this->GetFieldProperty($field_name, "case", "view");
                $field_property_on_js_event    = $this->GetFieldProperty($field_name, "on_js_event", "view", "normal");
                
                // customized working with field value
                if(function_exists($field_property_on_item_created)) $field_value = $field_property_on_item_created($field_value, &$field_property_type);
                
                $title = "";
                if(($field_property_text_length != "-1") && ($field_property_text_length != "") && ($field_value != "")){
                    if((strlen($field_value)) > $field_property_text_length){
                        $field_value = str_replace('"', "&quot;", $field_value); // double quotation mark
                        $field_value = str_replace("'", "&#039;", $field_value); // single quotation mark
                        $field_value = str_replace(chr(13), "", $field_value);   // CR sign
                        $field_value = str_replace(chr(10), " ", $field_value);  // LF sign                    
                        if($req_print != true){
                            if(($fp_tooltip == true) || ($fp_tooltip == "true")){
                                if($fp_tooltip_type == "floating"){
                                    $title = " onmouseover=\"return overlib('".$field_value."');\" onmouseout='return nd();' style='cursor: help;'";	                            
                                }else{
                                    $title = "title='".$field_value."' style='cursor: help;'";
                                }
                            }                        
                        }
                        $field_value = substr($field_value, 0, $field_property_text_length)."...";
                    }
                }
                
                $field_type = ($field_property_type == "") ? "label" : $field_property_type;
                // format case of field value
                if(strtolower($field_property_case) == "upper"){
                    $field_value = strtoupper($field_value);
                }else if(strtolower($field_property_case) == "lower"){
                    $field_value = $this->StrToLower($field_value);
                }else if(strtolower($field_property_case) == "camel"){
                    $field_value_splited = split(" ", $field_value);
                    $field_value_camel = "";
                    foreach ($field_value_splited as $key) {
                        $field_value_camel .= ucfirst($key)." ";
                    }
                    $field_value = trim($field_value_camel);
                }
                if($req_print == true){ $field_type = "label"; }
                $on_js_event = $field_property_on_js_event;                                    

                switch($field_type){
                    case "barchart":
                        $field_property_field = $this->GetFieldProperty($field_name, "field", "view");
                        $field_property_maximum_value = $this->GetFieldProperty($field_name, "maximum_value", "view");
                        if(($field_property_field != "") && ($this->GetFieldOffset($field_property_field) != -1)) $field_value = $row[$this->GetFieldOffset($field_property_field)];
                        $barchart_result ="
                        <table width='110px;' bgcolor='#dddddd' height='10px' align='center' cellpadding='0' cellspacing='0' ".$on_js_event.">
                        <tr title='".$field_value."'>
                        <td style='FONT-SIZE:9px;' align='center' width='".($field_value/$field_property_maximum_value * 100)."px' bgcolor='#999999' class='class_nowrap'>
                        ".(($field_value > 0) ? $field_value : "")."
                        </td>
                        <td style='FONT-SIZE:9px;' width='".(100 - ($field_value/$field_property_maximum_value * 100))."px' align='center' class='class_nowrap'>
                        ".(($field_value == 0) ? $field_value : "")."
                        </td>
                        </tr>
                        </table>";
                        return $barchart_result;
                        break;
                    case "enum":
                        if (is_array($this->columns_view_mode[$field_name]["source"])){
                           return $this->nbsp.$this->columns_view_mode[$field_name]["source"][$field_value].$this->nbsp;
                        }else{
                           return $this->nbsp."<label>".trim($field_value)."</label>".$this->nbsp;
                        }
                        break;
                    case "image":
                        $field_property_align        = $this->GetFieldProperty($field_name, "align", "view", "lower", "center");
                        $field_property_target_path  = $this->GetFieldProperty($field_name, "target_path", "view");
                        $field_property_image_width  = $this->GetFieldProperty($field_name, "image_width", "view", "lower", "50px");
                        $field_property_image_height = $this->GetFieldProperty($field_name, "image_height", "view", "lower", "30px");
                        $field_property_default      = $this->GetFieldProperty($field_name, "default", "view", "normal");
                        $field_property_magnify      = $this->GetFieldProperty($field_name, "magnify", "view", "normal");
                        $img_default                 = "";
                        $img_magnify                 = "";
                        $img_src                     = $field_property_target_path.trim($field_value);
                        if($field_property_default != ""){
                            if(file_exists(trim($field_property_default))){
                                $img_default = "<img src='".$field_property_default."' width='".$field_property_image_width."' height='".$field_property_image_height."' alt='' title='' ".$on_js_event.">";
                            }else{
                                $img_default = "<span class='".$this->css_class."_class_label' ".$on_js_event.">".$this->lang['no_image']."</span>";    
                            }                            
                        }
                        if(($field_property_magnify == "true") || ($field_property_magnify == true)){
                            $img_magnify = "onmouseover='showtrail(\"".$img_src."\",\"\",\"\",\"1\", ".($field_property_image_height*2).", 1, ".($field_property_image_width*2).");' onmouseout='hidetrail();'";
                        }
                        if((trim($field_value) !== "") && file_exists($field_property_target_path.trim($field_value))){
                            return $this->nbsp."<img style='vertical-align: middle; border:1px;' src='".$img_src."' width='".$field_property_image_width."' height='".$field_property_image_height."' ".$on_js_event." ".$img_magnify.">".$this->nbsp;
                        }else{                            
                            return "<table align='".$field_property_align."' style='BORDER: solid 0px #000000;' width='".$field_property_image_width."' height='".$field_property_image_height."'><tr><td align='".$field_property_align."'>".$img_default."</td></tr></table>";
                        }
                        break;
                    case "label":
                        if((trim($field_value) != "")
                            // we need this for right handling wysiwyg editor values
                            && (trim($this->StrToLower($field_value)) !== "<pre></pre>")
                            && (trim($this->StrToLower($field_value)) !== "<pre>".$this->nbsp."</pre>")
                            && (trim($this->StrToLower($field_value)) !== "<p></p>")
                            && (trim($this->StrToLower($field_value)) !== "<p>".$this->nbsp."</p>")){ 
                            return $field_property_pre_addition.$this->nbsp."<label class='".$this->css_class."_class_label' ".$title." ".$on_js_event.">".trim($field_value)."</label>".$this->nbsp.$field_property_post_addition;
                        }else{
                            return "&nbsp;&nbsp;";
                        }
                        break;                    
                    case "link":
                    case "linkbutton":
                        $field_property_field_data = $this->GetFieldProperty($field_name, "field_data", "view", "normal");
                        $field_property_rel        = $this->GetFieldProperty($field_name, "rel", "view");
                        $field_property_href       = $this->GetFieldProperty($field_name, "href", "view");
                        $field_property_target     = $this->GetFieldProperty($field_name, "target", "view");
                        
                        if($field_property_field_data != ""){
                            $rel = ($field_property_rel != "") ? "rel=".$field_property_rel : "";
                            $title = $this->GetFieldTitle($field_name, "view");
                            $href = $field_property_href;
                            foreach ($this->columns_view_mode[$field_name] as $search_field_key => $search_field_value){
                                if(substr($search_field_key, 0, 9) == "field_key"){                                    
                                    $field_number = intval(substr($search_field_key, 10, strlen($search_field_key) - 10));
                                    $field_inner = ($this->GetFieldOffset($search_field_value) != "-1") ? $row[$this->GetFieldOffset($search_field_value)] : "";
                                    if(strpos($field_property_href, "{".$field_number."}") >= 0){
                                        $href = str_replace("{".$field_number."}", $field_inner, $href);
                                    }                                    
                                }                                
                            }
                            // remove unexpected 'http://'s                            
                            if(strstr($field_property_href, "http://") != ""){
                                $href = str_replace("http://", "", $href);
                                $href = "http://".$href;
                            }
                            return $this->nbsp."<a class='".$this->css_class."_class_a2' href='".$href."' target='".$field_property_target."' ".$rel." title='".$title."' ".$on_js_event.">".trim($row[$this->GetFieldOffset($field_property_field_data)])."</a>".$this->nbsp;
                        }else{
                            return $this->nbsp;   
                        }                        
                        break;
                    case "linktoview":
                        $curr_url = $this->CombineUrl("details", intval($row[(($this->GetFieldOffset($this->primary_key) != -1) ? $this->GetFieldOffset($this->primary_key) : 0)]));                         
                        $this->SetUrlStringPaging($curr_url);
                        $this->SetUrlStringSorting($curr_url);
                        $this->SetUrlStringFiltering($curr_url);                    
                        return $this->nbsp."<a class='".$this->css_class."_class_a' href='$curr_url' ".$title." ".$on_js_event.">".trim($field_value)."</a>".$this->nbsp;
                        break;
                    case "linktoedit":
                        $curr_url = $this->CombineUrl("edit", $row[(($this->GetFieldOffset($this->primary_key) != -1) ? $this->GetFieldOffset($this->primary_key) : 0)]);                         
                        $this->SetUrlStringPaging($curr_url);
                        $this->SetUrlStringSorting($curr_url);
                        $this->SetUrlStringFiltering($curr_url);                    
                        return $this->nbsp."<a class='".$this->css_class."_class_a' href='$curr_url' ".$title." ".$on_js_event.">".trim($field_value)."</a>".$this->nbsp;
                        break;
                    case "linktodelete":
                        $curr_url = $this->CombineUrl("delete", $row[(($this->GetFieldOffset($this->primary_key) != -1) ? $this->GetFieldOffset($this->primary_key) : 0)]);                         
                        $this->SetUrlString($curr_url, "filtering", "sorting", "paging");
                        $on_js_event = "onclick = \"return ".$this->uniquePrefix."verifyDelete('$curr_url');\"";
                        return $this->nbsp."<a class='".$this->css_class."_class_a' style='cursor:pointer;' ".$title." ".$on_js_event.">".trim($field_value)."</a>".$this->nbsp;
                        break;
                    case "money": 
                        $field_property_decimal_places  = $this->GetFieldProperty($field_name, "decimal_places", "view"); 
                        $field_property_dec_separator   = $this->GetFieldProperty($field_name, "dec_separator", "view"); 
                        $field_property_thousands_separator = $this->GetFieldProperty($field_name, "thousands_separator", "view");                        
                        $field_property_money_sign      = $this->GetFieldProperty($field_name, "sign", "view"); 
                        if((trim($field_value) != "") 
                            // we need this for right handling wysiwyg editor values 
                            && (trim($this->StrToLower($field_value)) !== "<pre></pre>") 
                            && (trim($this->StrToLower($field_value)) !== "<pre>".$this->nbsp."</pre>") 
                            && (trim($this->StrToLower($field_value)) !== "<p></p>") 
                            && (trim($this->StrToLower($field_value)) !== "<p>".$this->nbsp."</p>")){ 
                            return $field_property_pre_addition.$this->nbsp."<label>".trim($field_property_money_sign.number_format($field_value, $field_property_decimal_places, $field_property_dec_separator, $field_property_thousands_separator))."</label>".$this->nbsp.$field_property_post_addition; 
                        }else{ 
                            return $this->nbsp;   
                        } 
                       break;                     
                    case "password":
                        return $this->nbsp."<label class='".$this->css_class."_class_label' ".$title." ".$on_js_event.">******</label>".$this->nbsp;
                        break;                    
                    default:
                        return $this->nbsp."<label class='".$this->css_class."_class_label' ".$title." ".$on_js_event.">".trim($field_value)."</label>".$this->nbsp; break;
                }
            }
        // -= ADD / EDIT / DETAILS MODE =-    
        }else if(($this->mode === "edit") || ($this->mode === "details")){

            if(array_key_exists($field_name, $this->columns_edit_mode)){
                $field_property_maxlength       = $this->GetFieldProperty($field_name, "maxlength");
                $field_property_type            = $this->GetFieldProperty($field_name, "type");
                $field_property_req_type        = ($m_field_req_type != "") ? $m_field_req_type : $this->GetFieldProperty($field_name, "req_type");
                $field_property_width           = $this->GetFieldProperty($field_name, "width");
                $field_property_readonly        = $this->GetFieldProperty($field_name, "readonly");
                $field_property_default         = $this->GetFieldProperty($field_name, "default", "edit", "normal");
                $field_property_on_js_event     = $this->GetFieldProperty($field_name, "on_js_event", "edit", "normal");
                $field_property_calendar_type   = $this->GetFieldProperty($field_name, "calendar_type");
                $field_property_pre_addition    = $this->GetFieldProperty($field_name, "pre_addition");
                $field_property_post_addition   = $this->GetFieldProperty($field_name, "post_addition");
                $field_property_on_item_created = $this->GetFieldProperty($field_name, "on_item_created", "edit");
                $field_property_autocomplete    = $this->GetFieldProperty($field_name, "autocomplete");
                if($field_property_autocomplete == "off") $autocomplete = "autocomplete='off'"; else $autocomplete = "";
                
                // customized working with field value
                if(function_exists($field_property_on_item_created)) $field_value = $field_property_on_item_created($field_value, &$field_property_type);
                
                // detect maxlength for the current field
                $field_maxlength = $this->GetFieldInfo($field_name, 'len', 0);
                if($field_maxlength <= 0) $field_maxlength = "";
                else $field_maxlength = "maxlength='".$field_maxlength."'";                        
                if($field_property_maxlength == ""){
                    if(!$this->IsText($field_name)){ $field_maxlength = "maxlength='50'"; }
                }else{
                    if(($field_property_maxlength != "-1") && ($field_property_maxlength != "")){
                        $field_maxlength = "maxlength='".$field_property_maxlength."'";    
                    }
                }                                
                // detect field's type
                if($field_property_type == ""){ $field_type = "label"; } else $field_type = $field_property_type;
                // get required prefix for a field
                $field_req_type = $field_property_req_type;                
                if(strlen(trim($field_req_type)) == 3){ $field_req_type = $field_req_type; }
                else if(strlen(trim($field_req_type)) == 2){ $field_req_type = $field_req_type."y"; }
                else { $field_req_type = "syy"; }
                // detect field's width
                if($field_property_width != "") $field_width = "style='width:".$field_property_width.";'"; else $field_width = "";
                // detect field's readonly property                
                if($field_property_readonly == true) { $readonly = "readonly='readonly'"; $disabled = "disabled"; }
                else { $readonly = ""; $disabled = ""; }                
                if($req_print == true){ $field_type = "print"; }
                // get default value of field
                if(($req_mode == "add") || ($field_type == "hidden")){
                    if($field_property_default != "") { $field_value = $field_property_default; }
                    ///d 4.02.08 && ($field_property_default != 0)
                }
                $on_js_event = $field_property_on_js_event;
            
                if ($this->mode === "edit"){
                    // save entered values from fields in add/edit modes
                    $req_field_value = $this->GetVariable($field_req_type.$field_name, false, "post");
                    if($req_field_value != "") $field_value = $req_field_value;
                    switch($field_type){
                        case "checkbox":                        
                            $checked = "";
                            $field_property_true_value = $this->GetFieldProperty($field_name, "true_value");
                            $field_property_false_value = $this->GetFieldProperty($field_name, "false_value");
                            if(($field_property_true_value != "") && ($field_property_false_value != "")){
                                if($field_value == $field_property_true_value){
                                    $checked = "checked";
                                }
                            }
                            echo $field_property_pre_addition.$this->nbsp."<input class='".$this->css_class."_class_checkbox' type='checkbox' name='".$this->GetFieldRequiredType($field_name).$field_name."' id='".$this->GetFieldRequiredType($field_name).$field_name."' title='".$this->GetFieldTitle($field_name)."' value='".trim($field_value)."' ".$checked." ".$readonly." ".$on_js_event.">".$this->nbsp.$field_property_post_addition;
                            break;                                                
                        case "date":
                            return $this->DrawCalendarButton($field_name, $field_type, "Y-m-d", $field_value, $field_property_pre_addition, $field_property_post_addition, $field_width, $field_maxlength, $on_js_event, $readonly, $field_property_calendar_type);
                            break;                        
                        case "datedmy":
                            return $this->DrawCalendarButton($field_name, $field_type, "d-m-Y", $field_value, $field_property_pre_addition, $field_property_post_addition, $field_width, $field_maxlength, $on_js_event, $readonly, $field_property_calendar_type);
                            break;                        
                        case "datetime":
                            return $this->DrawCalendarButton($field_name, $field_type, "Y-m-d H:i:s", $field_value, $field_property_pre_addition, $field_property_post_addition, $field_width, $field_maxlength, $on_js_event, $readonly, $field_property_calendar_type);
                            break;                        
                        case "datetimedmy":
                            return $this->DrawCalendarButton($field_name, $field_type, "d-m-Y H:i:s", $field_value, $field_property_pre_addition, $field_property_post_addition, $field_width, $field_maxlength, $on_js_event, $readonly, $field_property_calendar_type);
                            break;
                        case "enum":                            
                            $ret_enum = "";
                            $field_property_view_type = $this->GetFieldProperty($field_name, "view_type");
                            $field_property_radiobuttons_alignment = $this->GetFieldProperty($field_name, "radiobuttons_alignment");
                            if($this->GetFieldProperty($field_name, "multiple") == true){ $enum_multiple = true; } else { $enum_multiple = false; }
                            $field_property_multiple_size = $this->GetFieldProperty($field_name, "multiple_size", "edit", "lower", "4");                            
                            switch($field_property_view_type){
                                case "radiobutton":
                                    if(is_array($this->columns_edit_mode[$field_name]["source"])){  // don't remove columns_edit_mode
                                        $ret_enum .= $this->nbsp.$this->DrawRadioButtons($this->GetFieldRequiredType($field_name).$field_name, $field_name, $this->columns_edit_mode[$field_name]["source"], $field_value, 'source', "", $disabled, $on_js_event, $field_property_radiobuttons_alignment).$this->nbsp;
                                    }else{
                                        $ret_enum .= $this->nbsp.$this->DrawRadioButtons($this->GetFieldRequiredType($field_name).$field_name, $field_name, $this->GetEnumValues($this->tbl_name, $field_name), $field_value, 'source', "", $disabled, $on_js_event, $field_property_radiobuttons_alignment).$this->nbsp;
                                    }                                        
                                    break;                            
                                case "dropdownlist":
                                default:                                
                                    if(is_array($this->columns_edit_mode[$field_name]["source"])){  // don't remove columns_edit_mode
                                        $ret_enum .= $this->nbsp.$this->DrawDropDownList($this->GetFieldRequiredType($field_name).$field_name, '', $this->columns_edit_mode[$field_name]["source"], $field_value, "", "", "", $disabled, $on_js_event, $enum_multiple, $field_property_multiple_size).$this->nbsp;
                                    }else{
                                        $ret_enum .= $this->nbsp.$this->DrawDropDownList($this->GetFieldRequiredType($field_name).$field_name, '', $this->GetEnumValues($this->tbl_name, $field_name), trim($field_value), "", "", "", $disabled, $on_js_event, $enum_multiple, $field_property_multiple_size).$this->nbsp;
                                    }
                                    break;
                            }
                            return $ret_enum;
                            break;
                        case "hidden":
                            $ret_hidden  ="<input type='hidden' id='".$this->GetFieldRequiredType($field_name).$field_name."' name='".$this->GetFieldRequiredType($field_name).$field_name."' id='".$this->GetFieldRequiredType($field_name).$field_name."' value='".trim($field_value)."'>";
                            return $ret_hidden;                        
                            break;                        
                        case "image":
                        case "file":
                            $ret_file = "";
                            $file = false;
                            $file_error_msg = "";
                            $file_name_view = $field_value;
                            $file_act = $this->GetVariable('file_act');
                            $file_id = $this->GetVariable('file_id');
                            $rid = $this->GetVariable('rid');
                            // where the file is going to be placed 
                            $field_property_target_path   = $this->GetFieldProperty($field_name, "target_path");
                            $field_property_file_name     = $this->GetFieldProperty($field_name, "file_name");
                            $field_property_image_width   = $this->GetFieldProperty($field_name, "image_width", "edit", "lower", "120px");
                            $field_property_image_height  = $this->GetFieldProperty($field_name, "image_height", "edit", "lower", "90px");
                            $field_property_max_file_size = $this->GetFieldProperty($field_name, "max_file_size", "edit", "lower");
                            $field_property_magnify       = $this->GetFieldProperty($field_name, "magnify", "edit");
                            $img_magnify                  = "";
                            
                            if($this->GetFieldProperty($field_name, "host") == "remote"){
                                // *** upload file from url (remote host)
                                $ret_file = "";
                                if(trim($field_value) == ""){
                                    if(($file_act == "upload") && ($file_id == $field_name)){
                                        $file_error_msg = $this->lang['file_uploading_error'];
                                        $file = false;
                                    }
                                }else{
                                    if(($file_act == "remove") && ($file_id == $field_name)){                                    
                                        $sql = "UPDATE $this->tbl_name SET ".$field_name." = '' WHERE $this->primary_key = '".$rid."' ";
                                        $this->db_handler->query($sql);
                                        // delete file from target path
                                        if(file_exists($field_property_target_path.$field_value)){ unlink($field_property_target_path.$field_value); }
                                        else{ $file_error_msg = $this->lang['file_deleting_error']; }
                                        $file = false;
                                    }else if(($file_act == "upload") && ($file_id == $field_name)){
                                        if($downloaded_file = fopen($field_value, "r")){
                                            // commented 21.09.2008 $content = fread($downloaded_file, $this->GetRemoteFileSize($field_value));
                                            $content = $this->HttpGetFile($field_value);
                                            // get file name from url
                                            $field_value = strrev($field_value);
                                            $last_slash = strlen($field_value) - strpos($field_value,'/');
                                            $field_value = strrev($field_value);
                                            if($last_slash) { $field_value = substr($field_value,$last_slash); }
                                            if($field_property_file_name != ""){
                                                $file_name_view = $field_property_file_name.strchr(basename($field_value),".");
                                                $field_value = $file_name_view;                                                
                                            }                                            
                                            if($uploaded_file = fopen($field_property_target_path.$field_value, "w")){
                                                if(!fwrite($uploaded_file, $content)){
                                                    $file_error_msg = $this->lang['file_writing_error'];
                                                    $file = false;
                                                }else{
                                                    //echo "eee";
                                                    $sql = "UPDATE $this->tbl_name SET ".$field_name;
                                                    $sql .= " = '".$field_value."' ";                                                    
                                                    $sql .= " WHERE $this->primary_key= '".$rid."' ";
                                                    $this->db_handler->query($sql);                                                    
                                                    $file = true;
                                                    fclose($uploaded_file);
                                                }                                                
                                            }
                                            fclose($downloaded_file);
                                        }else{
                                            $file_error_msg = $this->lang['file_uploading_error'];                                            
                                        }
                                    }else{
                                        $file = true;
                                    }
                                }                                
                                // if there is a file (uploaded or exists)
                                if($file == true){
                                    //echo $target_path.$field_value;
                                    if(strlen($field_value) > 40){
                                        $str_start = strlen($field_value) - 40;
                                        $str_prefix = "...";
                                    }else{
                                        $str_start = 0;
                                        $str_prefix = "";
                                    }
                                    //$ret_file .= "<input type='hidden' name='".$this->uniquePrefix."file_act' id='".$this->uniquePrefix."file_act' value='remove'>";
                                    $ret_file .= "<table><tr valign='middle'><td align='center'>";
                                    if($field_type == "image"){
                                        list($f_width, $f_height, $f_type, $f_attr) = getimagesize($field_property_target_path.$field_value);
                                        $f_size = number_format((filesize($field_property_target_path.$field_value)/1024),2,".",",")." Kb";
                                        if(($field_property_magnify == "true") || ($field_property_magnify == true)){
                                            $img_magnify = "onmouseover='showtrail(\"".$field_property_target_path.$field_value."\",\"\",\"\",\"1\", ".($field_property_image_height*2).", 1, ".($field_property_image_width*2).");' onmouseout='hidetrail();'";
                                        }                                        
                                        $ret_file .= $this->nbsp."<img src='".$field_property_target_path.$field_value."' height='".$field_property_image_height."' width='".$field_property_image_width."' title='$field_value ($f_width x $f_height - $f_size)' alt='$field_value' ".$img_magnify.">".$this->nbsp; 
                                    }else{
                                        $ret_file .= $this->nbsp.$str_prefix.substr($file_name_view, $str_start, 40).$this->nbsp;                                    
                                    }
                                    if($field_type == "image") $ret_file .= "<br>";
                                    else $ret_file .= "&nbsp;&nbsp;";
                                    if(($field_property_readonly != "true") && ($field_property_readonly != true)){
                                        $ret_file .= $this->nbsp."[<a class='".$this->css_class."_class_a' href='' onclick='formAction(\"remove\", \"".$field_name."\", \"".$this->uniquePrefix."\", \"".$this->HTTP_URL."\", \"".$_SERVER['QUERY_STRING']."\"); return false;'><b>".$this->lang['remove']."</b></a>]".$this->nbsp;
                                    }
                                    $ret_file .= "</td></tr></table>";
                                    $ret_file .= "<input type='hidden' value='$field_value' name='".$this->GetFieldRequiredType($field_name).$field_name."' id='".$this->GetFieldRequiredType($field_name).$field_name."'>";                                 
                                }else{
                                    //$ret_file .= "<input type='hidden' name='".$this->uniquePrefix."file_act' id='".$this->uniquePrefix."file_act' value='upload'>";                                
                                    if($file_error_msg != "") $ret_file .= $this->nbsp."<label class='".$this->css_class."_class_error_message no_print'>".$file_error_msg."</label><br>";
                                    $ret_file .= $this->nbsp."<input type='textbox' class='".$this->css_class."_class_textbox' ".$field_width." title='".$this->GetFieldTitle($field_name)."' name='".$this->GetFieldRequiredType($field_name).$field_name."' id='".$this->GetFieldRequiredType($field_name).$field_name."' ".$disabled." ".$on_js_event.">&nbsp;&nbsp;";
                                    $ret_file .= "[<a class='".$this->css_class."_class_a' ".(($disabled == "disabled") ? "" : "style='cursor: pointer;' onclick='formAction(\"upload\", \"".$field_name."\", \"".$this->uniquePrefix."\", \"".$this->HTTP_URL."\", \"".$_SERVER['QUERY_STRING']."\"); return false;'")."><b>".$this->lang['upload']."</b></a>]".$this->nbsp;                                
                                }
                                return $ret_file;
                                
                            }else{
                                // *** upload file from local machine                                
                                $ret_file = "";
                                if(trim($field_value) == ""){
                                    $file = true;
                                    $file_name = $this->GetFieldRequiredType($field_name).$field_name;                                                                
                                    if((count($_FILES) > 0) && ($file_id == $field_name)){                                                                                                            
                                        if (isset($_FILES[$file_name]["error"]) && ($_FILES[$file_name]["error"] > 0)){
                                            $file_error_msg = $this->lang['file_uploading_error'];
                                            if($this->debug){ $file_error_msg .= "Error: ".$_FILES[$file_name]["error"]; }
                                            $file = false;
                                        }else{
                                            // check file's max size
                                            if($field_property_max_file_size != ""){
                                                $max_file_size = $field_property_max_file_size; 
                                                if (!is_numeric($max_file_size)) { 
                                                    if (strpos($max_file_size, 'm') !== false) 
                                                        $max_file_size = intval($max_file_size)*1024*1024; 
                                                    elseif (strpos($max_file_size, 'k') !== false) 
                                                        $max_file_size = intval($max_file_size)*1024; 
                                                    elseif (strpos($max_file_size, 'g') !== false) 
                                                        $max_file_size = intval($max_file_size)*1024*1024*1024; 
                                                }
                                                if(isset($_FILES[$file_name]["size"]) && ($_FILES[$file_name]["size"] > $max_file_size)){
                                                   $file = false;
                                                   $file_error_msg = $this->lang['file_invalid file_size'].": ".number_format(($_FILES[$file_name]["size"]/1024),2,".",",")." Kb (".$this->lang['max'].". ".number_format(($max_file_size/1024),2,".",",")." Kb) ";
                                                }
                                            }                                        
                                        }                                    
                                        if($file == true){
                                            // create a directory for uploading, if it was not.
                                            if (!file_exists($field_property_target_path)) { mkdir($field_property_target_path,0744); }
                                            // add the original filename to our target path. Result is "uploads/filename.extension"                                                                                
                                            if($field_property_file_name != ""){
                                                $target_path_full = $field_property_target_path . $field_property_file_name.strchr(basename($_FILES[$file_name]['name']),".");
                                            }else{
                                                $target_path_full = $field_property_target_path . (isset($_FILES[$file_name]['name']) ? basename($_FILES[$file_name]['name']) : "") ;
                                            }
                                            if(isset($_FILES[$file_name]['tmp_name'])){
                                                if(move_uploaded_file($_FILES[$file_name]['tmp_name'], $target_path_full)) {
                                                    chmod($target_path_full, 0644);
                                                    $sql = "UPDATE $this->tbl_name SET ".$field_name;
                                                    if($field_property_file_name != ""){
                                                        $file_name_view = $field_property_file_name.strchr(basename($_FILES[$file_name]['name']),".");
                                                        $field_value = $field_property_file_name.strchr(basename($_FILES[$file_name]['name']),".");
                                                        $sql .= " = '".$field_property_file_name.strchr(basename($_FILES[$file_name]['name']),".")."'";
                                                    }else{
                                                        $file_name_view = $_FILES[$file_name]['name'];
                                                        $field_value = $_FILES[$file_name]['name'];
                                                        $sql .= " = '".$_FILES[$file_name]['name']."' ";                                                    
                                                    }
                                                    $sql .= " WHERE $this->primary_key= '".$rid."' ";                                                
                                                    $dSet = $this->db_handler->query($sql);
                                                    if(($this->debug) && ($this->db_handler->isError($dSet) == 1)){
                                                        $this->is_error = true;
                                                        $this->AddErrors($dSet);
                                                    }                                                    
                                                    $file = true;
                                                } else{
                                                    $file_error_msg = $this->lang['file_uploading_error'];
                                                    $file = false;
                                                }
                                            }else{
                                                $file = false;
                                            }
                                        }
                                    }else{
                                        $file = false;                                    
                                    }
                                }else{
                                    if(($file_act == "remove") && ($file_id == $field_name)){                                    
                                        $sql = "UPDATE $this->tbl_name SET ".$field_name." = '' WHERE $this->primary_key = '".$rid."' ";
                                        $this->db_handler->query($sql);
                                        // delete file from target path
                                        if(file_exists($field_property_target_path.$field_value)){
                                            unlink($field_property_target_path.$field_value);
                                        }else{
                                            $file_error_msg = $this->lang['file_deleting_error'];
                                        }
                                        $file = false;
                                    }else{
                                        $file = true;
                                    }
                                }
                                // if there is a file (uploaded or exists)
                                if($file == true){
                                    if(strlen($field_value) > 40){
                                        $str_start = strlen($field_value) - 40;
                                        $str_prefix = "...";
                                    }else{
                                        $str_start = 0;
                                        $str_prefix = "";
                                    }
                                    //$ret_file .= "<input type='hidden' name='".$this->uniquePrefix."file_act' id='".$this->uniquePrefix."file_act' value='remove'>";
                                    $ret_file .= "<table><tr valign='middle'><td align='center'>";
                                    if($field_type == "image"){
                                        $f_width = $f_height = $f_size = 0;
                                        if(file_exists($field_property_target_path.$field_value)){
                                            list($f_width, $f_height, $f_type, $f_attr) = getimagesize($field_property_target_path.$field_value);
                                            $f_size = number_format((filesize($field_property_target_path.$field_value)/1024),2,".",",")." Kb";                                                                                    
                                        }else{
                                            $ret_file .= $this->nbsp."<label class='".$this->css_class."_class_error_message no_print'>".$this->lang['file_uploading_error']."</label><br>";                                            
                                        }
                                        if(($field_property_magnify == "true") || ($field_property_magnify == true)){
                                            $img_magnify = "onmouseover='showtrail(\"".$field_property_target_path.$field_value."\",\"\",\"\",\"1\", ".($field_property_image_height*2).", 1, ".($field_property_image_width*2).");' onmouseout='hidetrail();'";
                                        }                                                                                
                                        $ret_file .= $this->nbsp."<img src='".$field_property_target_path.$field_value."' height='".$field_property_image_height."' width='".$field_property_image_width."' title='$field_value ($f_width x $f_height - $f_size)' alt='$field_value' ".$img_magnify.">".$this->nbsp;    
                                    }else{
                                        $ret_file .= $this->nbsp.$str_prefix.substr($file_name_view, $str_start, 40).$this->nbsp;                                    
                                    }
                                    if($field_type == "image") $ret_file .= "<br>";
                                    else $ret_file .= "&nbsp;&nbsp;";
                                    if(($field_property_readonly != "true") && ($field_property_readonly != true)){
                                        $ret_file .= $this->nbsp."[<a class='".$this->css_class."_class_a' href='javascript:void(0);' onclick='formAction(\"remove\", \"".$field_name."\", \"".$this->uniquePrefix."\", \"".$this->HTTP_URL."\", \"".$_SERVER['QUERY_STRING']."\"); return false;'><b>".$this->lang['remove']."</b></a>]".$this->nbsp;
                                    }
                                    $ret_file .= "</td></tr></table>";
                                    $ret_file .= "<input type='hidden' value='$field_value' name='".$this->GetFieldRequiredType($field_name).$field_name."' id='".$this->GetFieldRequiredType($field_name).$field_name."'>";                                 
                                }else{
                                    //$ret_file .= "<input type='hidden' name='".$this->uniquePrefix."file_act' id='".$this->uniquePrefix."file_act' value='upload'>";                                
                                    if($file_error_msg != "") $ret_file .= $this->nbsp."<label class='".$this->css_class."_class_error_message no_print'>".$file_error_msg."</label><br>";
                                    $ret_file .= $this->nbsp."<input type='file' class='".$this->css_class."_class_textbox' ".$field_width." title='".$this->GetFieldTitle($field_name)."' name='".$this->GetFieldRequiredType($field_name).$field_name."' id='".$this->GetFieldRequiredType($field_name).$field_name."' ".$disabled." ".$on_js_event.">&nbsp;&nbsp;";
                                    $ret_file .= "[<a class='".$this->css_class."_class_a' ".(($disabled == "disabled") ? "" : "style='cursor: pointer;' onclick='formAction(\"upload\", \"".$field_name."\", \"".$this->uniquePrefix."\", \"".$this->HTTP_URL."\", \"".$_SERVER['QUERY_STRING']."\"); return false;'")."><b>".$this->lang['upload']."</b></a>]".$this->nbsp;                                
                                }
                                return $ret_file;
                            }
                            break;                        
                        case "label":
                            return $this->nbsp."<label class='".$this->css_class."_class_textbox' ".$field_width." ".$on_js_event.">".trim($field_value)."</label>".$this->nbsp; 
                            break;
                        case "link":
                            return $this->nbsp."<input type='text' class='".$this->css_class."_class_textbox' ".$field_width." title='".$this->GetFieldTitle($field_name)."' name='".$this->GetFieldRequiredType($field_name).$field_name."' id='".$this->GetFieldRequiredType($field_name).$field_name."' value='".trim($field_value)."' $field_maxlength $readonly ".$on_js_event.">".$this->nbsp;
                            break;                        
                        case "password":                    
                            return $this->nbsp."<input type='password' class='".$this->css_class."_class_textbox' ".$field_width." title='".$this->GetFieldTitle($field_name)."' name='".$this->GetFieldRequiredType($field_name).$field_name."' id='".$this->GetFieldRequiredType($field_name).$field_name."' value='".trim($field_value)."' $field_maxlength $readonly ".$on_js_event.">".$this->nbsp;
                            break;
                        case "print":
                            return $this->nbsp."<label class='".$this->css_class."_class_label' ".$field_width.">".trim($field_value)."</label>".$this->nbsp; 
                            break;                        
                        case "textarea":
                            $field_value = str_replace('"', "&quot;", $field_value); // double quotation mark
                            $field_value = str_replace("'", "&#039;", $field_value); // single quotation mark
                            $resizable           = $field_property_resizable = $this->GetFieldProperty($field_name, "resizable", "edit", "lower", "false");
                            $field_rows          = $field_property_rows      = $this->GetFieldProperty($field_name, "rows", "edit", "lower", "3");
                            $field_cols          = $field_property_cols      = $this->GetFieldProperty($field_name, "cols", "edit", "lower", "23");
                            $field_edit_type     = $field_property_edit_type = $this->GetFieldProperty($field_name, "edit_type");
                            $field_wysiwyg_width = $field_property_width     = $this->GetFieldProperty($field_name, "width", "edit", "lower", "0");

                            $field_id = $this->GetFieldRequiredType($field_name).$field_name;
                            if(strtolower($field_edit_type) == "wysiwyg") $field_maxlength = "";
                            if(($resizable == true) || ($resizable == "true")) { $field_class = "class='resizable'"; } else { $field_class = ""; };
                            $texarea  = $this->nbsp."<textarea ".$field_class." id='".$field_id."' name='".$field_id."' title='".$this->GetFieldTitle($field_name)."' rows='".$field_rows."' cols='".$field_cols."' ".$field_maxlength." ".$field_width." ".$readonly." ".$on_js_event." >".trim($field_value)."</textarea>".$this->nbsp;
                            if((strtolower($this->browser_name) != "netscape") && strtolower($field_edit_type) == "wysiwyg"){
                                $texarea .= $this->nbsp."\n<script type='text/javascript'>\n";
                                $texarea .= "<!--\n";
                                $texarea .= "wysiwygWidth = ".((intval($field_wysiwyg_width) > ((9.4)*$field_cols)) ? intval($field_wysiwyg_width) : ((9.4)*$field_cols)).";";
                                $texarea .= "wysiwygHeight = ".(21*$field_rows).";";
                                $texarea .= "generate_wysiwyg('".$this->GetFieldRequiredType($field_name).$field_name."'); \n";
                                $texarea .= "//-->\n";
                                $texarea .= "</script>\n";
                            }
                            return $texarea;    
                            break;                    
                        case "textbox":                           
                            $field_value = str_replace('"', "&quot;", $field_value); // double quotation mark
                            $field_value = str_replace("'", "&#039;", $field_value); // single quotation mark
                            return $field_property_pre_addition.$this->nbsp."<input class='".$this->css_class."_class_textbox' ".$field_width." type='text' title='".$this->GetFieldTitle($field_name)."' name='".$field_req_type.$field_name."' id='".$field_req_type.$field_name."' value='".trim($field_value)."' ".$field_maxlength." ".$readonly." ".$on_js_event." ".$autocomplete.">".$this->nbsp.$field_property_post_addition;
                            break;
                        case "time":                            
                            $ret_date  = $this->nbsp."<input class='".$this->css_class."_class_textbox' ".$field_width." readonly type='text' title='".$this->GetFieldTitle($field_name)."' id='".$this->GetFieldRequiredType($field_name).$field_name."' name='".$this->GetFieldRequiredType($field_name).$field_name."' id='".$this->GetFieldRequiredType($field_name).$field_name."' value='".trim($field_value)."' $field_maxlength ".$on_js_event.">";
                            if($field_property_calendar_type == "floating"){
                                if(!$readonly) $ret_date .= "<img id='img".$this->GetFieldRequiredType($field_name).$field_name."' src='".$this->directory."images/".$this->css_class."/cal.gif' alt='".$this->lang['set_date']."' title='".$this->lang['set_date']."' align='top' style='cursor:pointer;margin:3px;margin-left:6px;margin-right:6px;border:0px;'></a>\n"."<script type='text/javascript'>Calendar.setup({inputField : '".$this->GetFieldRequiredType($field_name).$field_name."', ifFormat : '%H:%M:%S', showsTime : true, button : 'img".$this->GetFieldRequiredType($field_name).$field_name."'});</script>".$this->nbsp;                                                                                     
                            }else{
                                if(!$readonly) $ret_date .= "<a class='".$this->css_class."_class_a2' title='".$this->GetFieldTitle($field_name)."' href=\"javascript: openCalendar('".$this->directory."','', '".$this->uniquePrefix."frmEditRow', '$field_req_type', '".$field_name."', '$field_type')\"><img src='".$this->directory."images/".$this->css_class."/cal.gif' alt='".$this->lang['set_date']."' title='".$this->lang['set_date']."' align='top' style='MARGIN:3px;margin-left:6px;margin-right:6px;border:0px;'></a>".$this->nbsp;
                            }
                            if(!$readonly) $ret_date .= "<a class='".$this->css_class."_class_a2' style='cursor: pointer;' onClick='document.getElementById(\"".$this->GetFieldRequiredType($field_name).$field_name."\").value=\"".date("H:i:s")."\"'>[".date("H:i:s")."]</a>";
                            if((!$readonly) && (substr($this->GetFieldRequiredType($field_name), 0, 1) == "s")) $ret_date .= "&nbsp;<a class='".$this->css_class."_class_a2'  style='cursor: pointer;' onClick='document.getElementById(\"".$this->GetFieldRequiredType($field_name).$field_name."\").value=\"\"' title='".$this->lang['clear']."'>[".$this->lang['clear']."]</a>";                            
                            return $ret_date;
                            break;
                        case "validator":                           
                            $field_property_for_field = $this->GetFieldProperty($field_name, "for_field");
                            $field_property_validation_type = $this->GetFieldProperty($field_name, "validation_type");
                            $field_req_type           = $this->GetFieldRequiredType($field_property_for_field, true);
                            if($field_property_validation_type == "password"){ $validator_field_type = "password"; } else { $validator_field_type = "text"; }
                            return $this->nbsp."<input type='".$validator_field_type."' class='".$this->css_class."_class_textbox' ".$field_width." title='".$this->GetFieldTitle($field_name)."' name='".$field_req_type.$field_property_for_field."' id='".$field_req_type.$field_property_for_field."' value='' $field_maxlength $readonly ".$on_js_event.">".$this->nbsp;                                
                            break;                        
                        default:
                            return $this->nbsp."<input type='text' class='".$this->css_class."_class_textbox' ".$field_width." title='".$this->GetFieldTitle($field_name)."' name='".$this->GetFieldRequiredType($field_name).$field_name."' id='".$this->GetFieldRequiredType($field_name).$field_name."' value='".trim($field_value)."' $field_maxlength $readonly ".$on_js_event.">".$this->nbsp;
                            break;
                    }
                }else if ($this->mode === "details"){
                    switch($field_type){
                        case "checkbox":
                            return $this->nbsp.(($field_value == 1) ? $this->lang['yes'] : $this->lang['no']).$this->nbsp;
                            break;                        
                        case "date":
                            $field_value = substr(trim($field_value), 0, 10);
                            return $this->nbsp.(($field_value == '0000-00-00') ? '' : $field_value).$this->nbsp;
                            break;
                        case "datedmy":
                            return $this->nbsp.$this->MyDate($field_value, "datedmy").$this->nbsp;
                            break;                        
                        case "datetime":
                            $field_value = trim($field_value);
                            return $this->nbsp.(($field_value == '0000-00-00 00:00:00') ? '' : $field_value).$this->nbsp;
                            break;                        
                        case "datetimedmy":
                            return $this->nbsp.$this->MyDate($field_value, "datetimedmy").$this->nbsp;
                            break;                            
                        case "enum":
                            // don't remove columns_edit_mode
                            if(isset($this->columns_edit_mode[$field_name]['source']) && is_array($this->columns_edit_mode[$field_name]['source'])){                                
                                foreach($this->columns_edit_mode[$field_name]['source'] as $val => $opt){
                                    if($field_value == $val) return $this->nbsp.trim($opt).$this->nbsp;
                                }
                            }                        
                            return $this->nbsp.trim($field_value).$this->nbsp;
                            break;
                        case "hidden":
                            return "";  break;                        
                        case "image":
                            $field_property_target_path   = $this->GetFieldProperty($field_name, "target_path");
                            $field_property_image_width   = $this->GetFieldProperty($field_name, "image_width", "edit", "lower", "50px");
                            $field_property_image_height  = $this->GetFieldProperty($field_name, "image_height", "edit", "lower", "30px");
                            $field_property_default       = $this->GetFieldProperty($field_name, "default", "edit", "normal");
                            $img_default                  = (($field_property_default != "") && file_exists($field_property_target_path.trim($field_property_default))) ? "<img src='".$field_property_target_path.$field_property_default."' width='".$field_property_image_width."' height='".$field_property_image_height."' alt='' title=''>" : "<span class='".$this->css_class."_class_label'>".$this->lang['no_image']."</span>";                    
                            $field_property_magnify       = $this->GetFieldProperty($field_name, "magnify", "edit");
                            $img_magnify                  = "";

                            if((trim($field_value) !== "") && file_exists($field_property_target_path.trim($field_value))){
                                if(($field_property_magnify == "true") || ($field_property_magnify == true)){
                                    $img_magnify = "onmouseover='showtrail(\"".$field_property_target_path.trim($field_value)."\",\"\",\"\",\"1\", ".($field_property_image_height*2).", 1, ".($field_property_image_width*2).");' onmouseout='hidetrail();'";
                                }                                                                        
                                return $this->nbsp."<img style='vertical-align: middle;border:1px;' src='".$field_property_target_path.trim($field_value)."' width='".$field_property_image_width."' height='".$field_property_image_height."' ".$img_magnify.">".$this->nbsp;
                            }else{
                                return "<table style='BORDER: solid 1px #000000;' width='".$field_property_image_width."' height='".$field_property_image_height."'><tr><td align='center'>".$img_default."</td></tr></table>";
                            }
                            break;
                        case "label":
                            return $this->nbsp.trim($field_value).""; 
                            break;
                        case "link":                        
                            $field_property_field_data = $this->GetFieldProperty($field_name, "field_data", "details", "normal");
                            if($field_property_field_data != ""){
                                $href_inner   = $field_property_href   = $this->GetFieldProperty($field_name, "href");
                                $field_property_target = $this->GetFieldProperty($field_name, "target");
                                $on_js_event  = $field_property_on_js_event = $this->GetFieldProperty($field_name, "on_js_event", "details", "normal");

                                foreach ($this->columns_edit_mode[$field_name] as $search_field_key => $search_field_value){
                                    if(substr($search_field_key, 0, 9) == "field_key"){
                                        $field_number = intval(substr($search_field_key, 10, strlen($search_field_key) - 10));
                                        $field_inner = $row[$this->GetFieldOffset($search_field_value)];
                                        if(strpos($href_inner, "{".$field_number."}") >= 0){
                                            $href = str_replace("{".$field_number."}", $field_inner, $href_inner);
                                        }                                    
                                    }                                
                                }
                                // remove unexpected 'http://'s
                                if(strstr($href_inner, "http://") != ""){
                                    $href = str_replace("http://", "", $href);
                                    $href = "http://".$href;
                                }
                                $link_value = ($this->GetFieldOffset($field_property_field_data) != "-1") ? trim($row[$this->GetFieldOffset($field_property_field_data)]) : "";
                                return $this->nbsp."<a class='".$this->css_class."_class_a2' href='".$href."' target='".$field_property_target."' ".$on_js_event.">".$link_value."</a>".$this->nbsp;
                            }else{
                                return $this->nbsp;   
                            }                        
                            break;                        
                        case "password":
                            return $this->nbsp."<label class='".$this->css_class."_class_label'>******</label>".$this->nbsp;
                            break;                    
                        case "print":
                            return $this->nbsp."<label class='".$this->css_class."_class_label' ".$field_width.">".trim($field_value)."</label>".$this->nbsp; 
                            break;
                        case "textarea":
                        case "textbox":
                            return $field_property_pre_addition.$this->nbsp.trim($field_value).$field_property_post_addition; 
                            break;
                        case "validator":
                            return "";  break;                        
                        default:
                            return $this->nbsp.trim($field_value).""; 
                            break;
                    }                                        
                }
            }                        
        }
        return false;
    }


    //--------------------------------------------------------------------------
    // add Check Boxes Values
    //--------------------------------------------------------------------------
    protected function AddCheckBoxesValues(){
        foreach($this->columns_edit_mode as $itemName => $itemValue){
            if(isset($itemValue['type']) && $itemValue['type'] == "checkbox"){
                $found = false;
                foreach($_POST as $i => $v){
                    if($i == $this->GetFieldRequiredType($itemName).$itemName){
                        $found = true;
                    }
                }
                if(!$found){                    
                    $_POST[$this->GetFieldRequiredType($itemName).$itemName] = $itemValue['false_value'];
                }else{
                    $_POST[$this->GetFieldRequiredType($itemName).$itemName] = $itemValue['true_value'];
                }
            }            
        }
    }

    //--------------------------------------------------------------------------
    // get $_REQUEST variable
    //--------------------------------------------------------------------------
    protected function GetVariable($var = "", $prefix = true, $method = "request"){
        $prefix = (($prefix == true) || ($prefix == "true")) ? true : false;
        $unique_prefix = ($prefix) ? $this->uniquePrefix : "" ;
        $unique_prefix_var = (isset($_GET[$unique_prefix.$var])) ? $_GET[$unique_prefix.$var] : "0";

        // check for possible hack attack        
        $max_page_size = intval(max($this->pages_array));
        if(($var == "page_size") && (intval($unique_prefix_var) > intval($max_page_size))) {
            return $max_page_size; 
        } 
 
        switch($method){
            case "get":
                return isset($_GET[$unique_prefix.$var]) ? $_GET[$unique_prefix.$var] : "";                                
                break;
            case "post":
                return isset($_POST[$unique_prefix.$var]) ? $_POST[$unique_prefix.$var] : "";                                
                break;
            default:
                return isset($_REQUEST[$unique_prefix.$var]) ? $_REQUEST[$unique_prefix.$var] : "";                                
                break;
        }
    }

    //--------------------------------------------------------------------------
    // draw RadioButtons
    //--------------------------------------------------------------------------
    protected function DrawRadioButtons($tag_name, $field_name, &$select_array, $compare = "", $sub_field_value="", $sub_field_name="", $disabled="", $on_js_event="", $radiobuttons_alignment=""){
        $req_print = $this->GetVariable('print');        
        $break_by = ($radiobuttons_alignment == "vertical") ? "<br>" : "";
        $text = "";
        if($req_print != true){
            if($on_js_event !="") $text .= "<span ".$on_js_event.">";
            if(is_object($select_array)){
                while($row = $select_array->fetchRow()){
                    if(strtolower($row[$this->foreign_keys_array[$field_name][$sub_field_value]]) == strtolower($compare))                    
                        $text .= "<input class='".$this->css_class."_class_radiobutton' type='radio' title='".$this->GetFieldTitle($field_name)."' name='".$tag_name."' id='".$tag_name."' value='".$row[$this->foreign_keys_array[$field_name][$sub_field_value]]."' checked ".$disabled.">".$row[$this->foreign_keys_array[$field_name][$sub_field_name]].$this->nbsp.$break_by;                    
                    else
                        $text .= "<input class='".$this->css_class."_class_radiobutton' type='radio' title='".$this->GetFieldTitle($field_name)."' name='".$tag_name."' id='".$tag_name."' value='".$row[$this->foreign_keys_array[$field_name][$sub_field_value]]."'  ".$disabled.">".$row[$this->foreign_keys_array[$field_name][$sub_field_name]].$this->nbsp.$break_by;                    
                }                
            }else{
                foreach($select_array as $key => $val){
                    if(strtolower($key) == strtolower($compare)){
                        $text .= "<input class='".$this->css_class."_class_radiobutton' type='radio' id='".$tag_name."' name='".$tag_name."' value='".$key."' title='".$this->GetFieldTitle($field_name)."' checked  ".$disabled.">".$val."&nbsp;".$break_by;                    
                    }else{
                        $text .= "<input class='".$this->css_class."_class_radiobutton' type='radio' id='".$tag_name."' name='".$tag_name."' value='".$key."' title='".$this->GetFieldTitle($field_name)."'  ".$disabled.">".$val."&nbsp;".$break_by;
                    }
                }                
            }
            if($on_js_event !="") $text .= "</span>";            
        }else{
            if(is_object($select_array)){
                $found = 0;
                while(($row = $select_array->fetchRow()) && (!$found)){                    
                    if(strtolower($row[$this->foreign_keys_array[$field_name][$sub_field_value]]) == strtolower($compare)){ 
                        $text .= "<span ".$on_js_event.">".$row[$this->foreign_keys_array[$field_name][$sub_field_name]]."</span>";
                        $found = 1;
                    }                        
                }
                if($found == 0) $text .= "<span ".$on_js_event.">none</span>";                
            }else{
                $text = $compare;        
            }            
        }
        return $text;
    }
    
    //--------------------------------------------------------------------------
    // draw drop-down list
    //--------------------------------------------------------------------------
    protected function DrawDropDownList($tag_name, $foo_name, &$select_array, $compare = "", $field_name="", $sub_field_value="", $sub_field_name="", $disabled="", $on_js_event="", $multiple=false, $multiple_size="4"){                       
        $req_print = $this->GetVariable('print');
        $text = "";
        $multiple_parameters = ($multiple) ? $multiple_parameters = "multiple size='".$multiple_size."'" : "";
        $tag_id = $tag_name;
        $tag_name = ($multiple) ? $tag_name = $tag_name."[]" : $tag_name;        
        if($req_print != true){
            if(is_object($select_array)){
                $text = "<select class='".$this->css_class."_class_select' name='".$tag_name."' id='".$tag_id."' title='".$this->GetFieldTitle($field_name)."' ".(($foo_name != "") ? "onChange='".$this->uniquePrefix.$foo_name."'" : "")." ".$disabled." ".$on_js_event." ".$multiple_parameters.">";
                $text .= "<option value=''>-- ".$this->lang['select']." --</option>";
                if($this->db_handler->isError($select_array) != 1){
                    while($row = $select_array->fetchRow()){
                        $ff_name = $this->foreign_keys_array[$field_name][$sub_field_name];
                        if(eregi(" as ", strtolower($ff_name))) $ff_name = substr($ff_name, strpos(strtolower($ff_name), " as ")+4);                        
                        if(strtolower($row[$this->foreign_keys_array[$field_name][$sub_field_value]]) == strtolower($compare)) 
                            $text .= "<option selected value='".$row[$this->foreign_keys_array[$field_name][$sub_field_value]]."'>".$row[$ff_name]."</option>";
                        else 
                            $text .= "<option value='".$row[$this->foreign_keys_array[$field_name][$sub_field_value]]."'>".$row[$ff_name]."</option>";
                    }
                }
            }else{
                if(!is_array($compare)){ $splitted_compare = split(",",$compare); }else{ $splitted_compare = $compare; }
                $text = "<select class='".$this->css_class."_class_select' name='".$tag_name."' id='".$tag_id."' ".(($foo_name != "") ? "onChange='".$this->uniquePrefix.$foo_name."'" : "")." ".$disabled." ".$on_js_event." ".$multiple_parameters.">";
                foreach($select_array as $key => $val){
                    $selected = "";                    
                    if(count($splitted_compare) > 1){
                        foreach($splitted_compare as $spl_val){
                            if($spl_val == $key) {$selected = "selected"; break; }	
                        }
                    }else{
                        $selected = ((strtolower($compare) == strtolower($key)) ? "selected" : "");
                    }
                    $text .= "<option ".$selected." value='".$key."'>".$val."</option>";                                            
                }
            }
            $text .= "</select>";
        }else{
            if(is_object($select_array)){
                $found = 0;
                while(($row = $select_array->fetchRow()) && (!$found)){                    
                    if(strtolower($row[$this->foreign_keys_array[$field_name][$sub_field_value]]) == strtolower($compare)){
                        $text .= "<span>".$row[$this->foreign_keys_array[$field_name][$sub_field_name]]."</span>";
                        $found = 1;
                    }                        
                }
                if($found == 0) $text .= "<span>none</span>";                
            }else{
                $text = $compare;        
            }            
        }
        return $text;
    }

    //--------------------------------------------------------------------------
    // draw Mode Button
    //--------------------------------------------------------------------------
    protected function DrawModeButton($mode, $mode_url, $botton_name, $alt_name, $image_file, $onClick, $div_align=false, $nbsp="", $type=""){
        $req_print = $this->GetVariable('print');
        if($type == ""){
            $mode_type = (isset($this->modes[$mode]['type'])) ? $this->modes[$mode]['type'] : "";
        }else{
            $mode_type = $type;
        }
        if(!$this->is_error){                
            if($req_print != true){
                switch($mode_type){
                    case "button":
                        echo $nbsp."<input class='".$this->css_class."_class_button' type='button' ";
                        if($div_align){ echo "style='float: "; echo ($this->direction == "rtl")?"right":"left"; echo "' "; }                    
                        echo "onClick=$onClick value='".$botton_name."'>".$nbsp;
                        break;
                    case "image":
                        if($div_align){ echo "<div style='float:"; echo ($this->direction == "rtl")?"right":"left"; echo ";'>"; }
                        echo $nbsp."<img style='cursor:pointer; vertical-align: middle;' onClick=".$onClick." src='".$this->directory."images/".$this->css_class."/".$image_file."' alt='$alt_name' title='$alt_name'>".$nbsp;
                        if($div_align) echo "</div>"; 
                        break;                        
                    default:
                        if($div_align){ echo "<div style='float:"; echo ($this->direction == "rtl")?"right":"left"; echo ";'>"; }
                        echo $nbsp."<a class='".$this->css_class."_class_a".(($mode == "add") ? "_header" : "")."' href='$mode_url' onClick=".$onClick." title='$alt_name'>".$botton_name."</a>".$nbsp;
                        if($div_align) echo "</div>"; 
                        break;
                }
            }else{
                switch($mode_type){                    
                    case "button":
                        echo "<span ";
                        if($div_align){ echo "style='float: "; echo ($this->direction == "rtl")?"right":"left"; echo "' "; }                                        
                        echo ">".$botton_name."</span>";
                        break;
                    case "image":
                        if($div_align){ echo "<div style='float:"; echo ($this->direction == "rtl")?"right":"left"; echo ";'>"; }
                        echo "<img style='vertical-align: middle;' src='".$this->directory."images/".$this->css_class."/".$image_file."' readonly>";
                        if($div_align) echo "</div>";     
                        break;                        
                    default:
                        if($div_align){ echo "<div style='float:"; echo ($this->direction == "rtl")?"right":"left"; echo ";'>"; }
                        echo $nbsp."<span class='".$this->css_class."_class_a' >".$botton_name."</span>".$nbsp;
                        if($div_align) echo "</div>"; 
                        break;
                }
            }
        }
    }
   
    //--------------------------------------------------------------------------
    // set Common JavaScript
    //--------------------------------------------------------------------------
    protected function SetCommonJavaScript(){
        $req_mode = $this->GetVariable('mode');
        $req_new = $this->GetVariable('new');
        // change mode after update
        if(($req_mode == "update") && ($req_new != 1) && ($this->mode_after_update == "edit")){
            $req_mode = $this->mode_after_update;
        }        
        echo "\n<!-- This script was generated by datagrid.class.php v.4.2.8 (http://phpbuilder.blogspot.com) -->";

        // set common JavaScript
        if (!file_exists($this->directory.'scripts/dg.js')) {            
            echo "<label class='".$this->css_class."_class_error_message no_print'>Cannot find file: <b>".$this->directory."scripts/dg.js</b>. Check if this file exists and you use a correct path!</label><br><b>";
        }else{
            echo "\n<script type='text/javascript' src='".$this->directory."scripts/dg.js'></script>";
        }
        // include magnify.js file for magnifying images
        if ($this->MagnifyingFieldExists($req_mode)) {                        
            if (!file_exists($this->directory.'scripts/magnify.js')) {            
                echo "<label class='".$this->css_class."_class_error_message no_print'>Cannot find file: <b>".$this->directory."scripts/magnify.js</b>. Check if this file exists and you use a correct path!</label><br><br>";
            }else{
                echo "\n<script type='text/javascript' src='".$this->directory."scripts/magnify.js'></script>";
                echo "\n<STYLE>#trailimageid { DISPLAY: none; FONT-SIZE: 0.75em; Z-INDEX: 200; LEFT: 0px; POSITION: absolute; TOP: 0px; HEIGHT: 0px }</STYLE>";
            }
        }                    
        
        if(($req_mode == "add") || ($req_mode == "edit")){
            // include calendar script (floating), if needed        
            if ($this->DatetimeFieldExists("floating")) {            
                // set calendar JS                
                echo "<style type='text/css'>@import url(".$this->directory."modules/jscalendar/skins/aqua/theme.css);</style>\n"; 
                //<!-- import the calendar script -->
                echo "<script type='text/javascript' src='".$this->directory."modules/jscalendar/calendar.js'></script>"."\n";
                //<!-- import the language module -->
                echo "<script type='text/javascript' src='".$this->directory."modules/jscalendar/lang/calendar-".$this->GetLangAbbrForCalendar().".js'></script>"."\n";
                //<!-- the following script defines the Calendar.setup helper function, which makes
                //adding a calendar a matter of 1 or 2 lines of code. -->
                echo "<script type='text/javascript' src='".$this->directory."modules/jscalendar/calendar-setup.js'></script>\n"; 
            }
            // include form checking script, if needed
            if (!file_exists($this->directory.'modules/jsafv/form.scripts.js')) {            
                echo "<label class='".$this->css_class."_class_error_message no_print'>Cannot find file: <b>".$this->directory."modules/jsafv/form.scripts.js</b>. Check if this file exists and you use a correct path!</label><br><br>";
            }else{
                echo "\n<script type='text/javascript' src='".$this->directory."modules/jsafv/lang/jsafv-".$this->GetLangAbbrForJSAFV().".js'></script>";
                if($this->encoding == "utf8"){
                    echo "\n<script type='text/javascript' src='".$this->directory."modules/jsafv/chars/diactric_chars_utf8.js'></script>";
                }else{
                    echo "\n<script type='text/javascript' src='".$this->directory."modules/jsafv/chars/diactric_chars.js'></script>";
                }
                echo "\n<script type='text/javascript' src='".$this->directory."modules/jsafv/form.scripts.js'></script>";                    
            }
            // include resizable textarea script, if needed        
            if ($this->ResizableFieldExists()) {            
                if (!file_exists($this->directory.'scripts/resize.js')) {            
                    echo "<label class='".$this->css_class."_class_error_message no_print'>Cannot find file: <b>".$this->directory."scripts/resize.js</b>. Check if this file exists and you use a correct path!</label><br><br>";
                }else{
                    echo "\n<script type='text/javascript' src='".$this->directory."scripts/resize.js'></script>";                
                }
            }            
            // include WYSIWYG script, if needed
            if ($this->WysiwygFieldExists()) {            
                // set WYSIWYG
                echo "\n<script type='text/javascript'>\n";
                echo "<!--\n";
                echo "imagesDir = '".$this->directory."modules/wysiwyg/icons/';\n";  // Images Directory
                echo "cssDir = '".$this->directory."modules/wysiwyg/styles/';\n";    // CSS Directory
                echo "popupsDir = '".$this->directory."modules/wysiwyg/popups/';\n"; // Popups Directory
                echo "//-->\n";
                echo "</script>";
                echo "\n<script type='text/javascript' src='".$this->directory."modules/wysiwyg/wysiwyg.js'></script>";
            }
            // set verify JS functions
            if(isset($this->modes['cancel'][$this->mode]) && $this->modes['cancel'][$this->mode]){
                echo "\n<script type='text/javascript'>\n<!--";                                
                echo "\n function ".$this->uniquePrefix."verifyCancel(param){if(confirm(\"".$this->lang['cancel_creating_new_record']."\")){document.location.href=param;} else { return false;}};";
                echo "//-->\n</script>\n";                                           
            }
        }else{ // view mode
            // include autosuggest.js file and other for AutoSuggestion
            if ($this->AutosuggestFieldExists()){
                echo "\n<script type='text/javascript' src='".$this->directory."modules/autosuggest/js/bsn.AutoSuggest_2.1.3.js'></script>";        
                echo "\n<link rel='stylesheet' href='".$this->directory."modules/autosuggest/css/autosuggest_inquisitor.css' type='text/css' media='screen' charset='utf-8'>";        
            }
            // include overlib.js file for floating tooltips
            if ($this->FloatingToolTipsFieldExists()) {                        
                if (!file_exists($this->directory.'modules/overlib/overlib.js')) {            
                    echo "<label class='".$this->css_class."_class_error_message no_print'>Cannot find file: <b>".$this->directory."modules/overlib/overlib.js</b>. Check if this file exists and you use a correct path!</label><br><br>";
                }else{
                    echo "\n<script type='text/javascript' src='".$this->directory."modules/overlib/overlib.js'></script>";                
                }
            }
            // include highlight.js file for rows highlighting
            if($this->row_highlighting_allowed){
                if (!file_exists($this->directory.'scripts/highlight.js')) {            
                    echo "<label class='".$this->css_class."_class_error_message no_print'>Cannot find file: <b>".$this->directory."scripts/highlight.js</b>. Check if this file exists and you use a correct path!</label><br><br>";
                }else{                 
                    echo "\n<script type='text/javascript' src='".$this->directory."scripts/highlight.js'></script>";
                }
            }
        }        
    }
  
    protected function SetCommonJavaScriptEnd(){
        echo "<script type='text/javascript'>\n<!--\n";
        // set verify JS functions
        if(isset($this->modes['delete'][$this->mode]) && $this->modes['delete'][$this->mode]){
            echo "\nfunction ".$this->uniquePrefix."verifyDelete(param){if(confirm(\"".$this->lang['delete_this_record']."\")){document.location.href=param;} else { window.event.cancelBubble = true; return false;}};";
        }        
        echo "\n//-->\n";
        echo "</script>";        
    }
  
    protected function SetMediaPrint(){
        echo "\n<style type='text/css'> @media print { .no_print {DISPLAY: none! important};  }</style>";
    }         
        
    //--------------------------------------------------------------------------
    // set Edit Fields Form Script
    //--------------------------------------------------------------------------
    protected function SetEditFieldsFormScript($url=""){
        echo "<script type='text/javascript'>\n";
        echo "<!--\n";
        //echo $url;
        //document.".$this->uniquePrefix."frmEditRow.action ='".str_replace($this->amp,'&',$url)."';        
        echo "function ".$this->uniquePrefix."sendEditFields(){
            if(window.".$this->uniquePrefix."onSubmitMyCheck){ if(!".$this->uniquePrefix."onSubmitMyCheck()){ return false; } }
        ";
        // two different parts of code to find & save wysiwyg editor data
        if($this->browser_name == "Firefox"){
            echo "
                elements = document.getElementsByTagName('*');
                for (var idx = 0; idx < elements.length; idx++) {
                    node = elements.item(idx);
                    field_name = node.getAttribute('name');
                    field_type = node.getAttribute('type');
                    // check file or image fields
                    if(field_type == 'file'){
                        if(document.getElementById(field_name).value != ''){
                           alert('You need to upload file or image before update! Click on Upload link.');
                           return false;
                        }
                    }
                    field_full_name = 'wysiwyg' + field_name;                        
                    if(document.getElementById(field_full_name)){
                        document.getElementById(field_name).value = document.getElementById(field_full_name).contentWindow.document.body.innerHTML;                            
                        if((document.getElementById(field_name).value == '<p>&nbsp;</p>') || (document.getElementById(field_name).value == '<p> </p>') || (document.getElementById(field_name).value == '&lt;p&gt;&nbsp;&lt;/p&gt;')){
                            document.getElementById(field_name).value = '';
                        }
                    }
                }
            ";
        }else{ // "MSIE" or other
            echo "
                for (var idx=0; idx < document.".$this->uniquePrefix."frmEditRow.length; idx++) {
                    field_name = ".$this->uniquePrefix."frmEditRow.elements.item(idx).name;                    
                    field_type = ".$this->uniquePrefix."frmEditRow.elements.item(idx).type;                    
                    // check file or image fields
                    if(field_type == 'file'){
                        if(document.getElementById(field_name).value != ''){
                           alert('You need to upload file or image before update! Click on Upload link.');
                           return false;
                        }
                    }
                    field_full_name = 'wysiwyg' + field_name;                    
                    if(document.getElementById(field_full_name)){
                        document.getElementById(field_name).value = document.getElementById(field_full_name).contentWindow.document.body.innerHTML;                        
                        if((document.getElementById(field_name).value == '<P>&nbsp;</P>') || (document.getElementById(field_name).value == '&lt;P&gt;&nbsp;&lt;/P&gt;')){
                            document.getElementById(field_name).value = '';
                        }
                    }
                };
            ";
        };
        echo "
            if(onSubmitCheck(document.".$this->uniquePrefix."frmEditRow, ".$this->js_validation_errors.")){
                document.".$this->uniquePrefix."frmEditRow.submit();
            }else{
                return false;
            }
        }";
        echo "\n//-->\n";
        echo "</script>\n";
    }  
    
    //--------------------------------------------------------------------------
    // return date format
    //--------------------------------------------------------------------------
    protected function MyDate($field_value, $type="datedmy"){
        $ret_date = ""; 
        if($type == "datedmy"){ 
            if (substr(trim($field_value), 4, 1) == "-"){ 
                $year1 = substr(trim($field_value), 0, 4); 
                $month1 = substr(trim($field_value), 5, 2); 
                $day1 = substr(trim($field_value), 8, 2); 
                if($day1 != ""){ $ret_date = $day1."-".$month1."-".$year1; } 
            }else{         
                $year1 = substr(trim($field_value), 6, 4); 
                $month1 = substr(trim($field_value), 3, 2); 
                $day1 = substr(trim($field_value), 0, 2); 
                if($day1 != ""){ $ret_date = $day1."-".$month1."-".$year1; } 
            } 
        }else if($type == "datetimedmy"){ 
            if (substr(trim($field_value), 4, 1) == "-"){        
                $year1 = substr(trim($field_value), 0, 4); 
                $month1 = substr(trim($field_value), 5, 2); 
                $day1 = substr(trim($field_value), 8, 2); 
                $time1 = substr(trim($field_value), 11, 2); 
                $time2 = substr(trim($field_value), 14, 2); 
                $time3 = substr(trim($field_value), 17, 2); 
                if($day1 != ""){ $ret_date = $day1."-".$month1."-".$year1." ".$time1.":".$time2.":".$time3; } 
            }else{         
                $year1 = substr(trim($field_value), 6, 4); 
                $month1 = substr(trim($field_value), 3, 2); 
                $day1 = substr(trim($field_value), 0, 2); 
                $time1 = substr(trim($field_value), 11, 2); 
                $time2 = substr(trim($field_value), 14, 2); 
                $time3 = substr(trim($field_value), 17, 2); 
                if($day1 != ""){ $ret_date = $day1."-".$month1."-".$year1." ".$time1.":".$time2.":".$time3; } 
            } 
        }else{ 
            $ret_date = $field_value; 
        } 
        return $ret_date; 
    }

    
    ////////////////////////////////////////////////////////////////////////////
    //
    // Auxiliary methods
    // -------------------------------------------------------------------------
    ////////////////////////////////////////////////////////////////////////////
    protected function PrepareFileOperations($key){
        $files = array();
        if(is_array($this->columns_edit_mode)){        
            foreach($this->columns_edit_mode as $fldName => $fldParam){
                foreach($fldParam as $key => $val){
                    if(($val === "image") || ($val === "file")){
                        $file = array();
                        $file['file_name'] = $fldParam['file_name'];
                        $file['target_path'] = $fldParam['target_path'];
                        $files[] = $file;
                        break;
                    }
                }
            }
        }
        print_r($files);
    }
    
    protected function DrawCalendarButton($field_name, $field_type, $datetime_format="Y-m-d", $field_value="", $field_property_pre_addition="", $field_property_post_addition="", $field_width="", $field_maxlength="", $on_js_event="", $readonly=false, $field_property_calendar_type = "popup"){
        if($datetime_format == "Y-m-d"){
            $if_format = "%Y-%m-%d";          $show_time = false; 
        }else if($datetime_format == "d-m-Y"){
            $if_format = "%d-%m-%Y";          $show_time = false;
        }else if($datetime_format == "Y-m-d H:i:s"){
            $if_format = "%Y-%m-%d %H:%M:%S"; $show_time = true;            
        }else if($datetime_format == "d-m-Y H:i:s"){
            $if_format = "%d-%m-%Y %H:%M:%S"; $show_time = true;
        }else{
            $if_format = "%Y-%m-%d";          $show_time = false; 
        }
        $ret_date  = $this->nbsp."<input class='".$this->css_class."_class_textbox' ".$field_width." readonly type='text' title='".$this->GetFieldTitle($field_name)."' name='".$this->GetFieldRequiredType($field_name).$field_name."' id='".$this->GetFieldRequiredType($field_name).$field_name."' value='".trim($field_value)."' $field_maxlength ".$on_js_event.">";
        if($field_property_calendar_type == "floating"){
            if(!$readonly) $ret_date .= "<img id='img".$this->GetFieldRequiredType($field_name).$field_name."' src='".$this->directory."images/".$this->css_class."/cal.gif' alt='".$this->lang['set_date']."' title='".$this->lang['set_date']."' align='top' style='cursor:pointer;margin:3px;margin-left:6px;margin-right:6px;border:0px;'></a>".$this->nbsp."<script type='text/javascript'>Calendar.setup({inputField : '".$this->GetFieldRequiredType($field_name).$field_name."', ifFormat : '".$if_format."', showsTime : ".$show_time.", button : 'img".$this->GetFieldRequiredType($field_name).$field_name."'});</script>";
        }else{
            if(!$readonly) $ret_date .= "<a class='".$this->css_class."_class_a2' title='".$this->GetFieldTitle($field_name)."' href=\"javascript: openCalendar('".$this->directory."','', '".$this->uniquePrefix."frmEditRow', '".$this->GetFieldRequiredType($field_name)."', '".$field_name."', '$field_type')\"><img src='".$this->directory."images/".$this->css_class."/cal.gif' alt='".$this->lang['set_date']."' title='".$this->lang['set_date']."' align='top' style='MARGIN:3px;margin-left:6px;margin-right:6px;border:0px;'></a>".$this->nbsp;
        }
        if(!$readonly) $ret_date .= "<a class='".$this->css_class."_class_a2' style='cursor: pointer;' onClick='document.getElementById(\"".$this->GetFieldRequiredType($field_name).$field_name."\").value=\"".date($datetime_format)."\"'>[".date($datetime_format)."]</a>";
        if((!$readonly) && (substr($this->GetFieldRequiredType($field_name), 0, 1) == "s")) $ret_date .= "&nbsp;<a class='".$this->css_class."_class_a2'  style='cursor: pointer;' onClick='document.getElementById(\"".$this->GetFieldRequiredType($field_name).$field_name."\").value=\"\"' title='".$this->lang['clear']."'>[".$this->lang['clear']."]</a>";                            
        return $field_property_pre_addition.$ret_date.$field_property_post_addition;
    }

    //--------------------------------------------------------------------------
    // get Formatted Microtime
    //--------------------------------------------------------------------------
    protected function GetFormattedMicrotime(){
        list($usec, $sec) = explode(' ', microtime());
        return ((float)$usec + (float)$sec);
    }
    
    //--------------------------------------------------------------------------
    // download export file 
    //--------------------------------------------------------------------------
    protected function ExportDownloadFile($file_name){
        $_SESSION['datagrid_export_dir']= $this->exporting_directory;
        $_SESSION['datagrid_export_file']= $file_name;
        $_SESSION['datagrid_debug']= $this->debug;

        return "<script type='text/javascript'>\n<!--\n ".
        "if(confirm('Do you want to export datagrid content into [".$file_name."] file?')){ ".
        " document.write('".str_replace("_FILE_", $file_name, $this->lang['export_message'])."'); ".            
        " document.location.href = '".$this->directory."scripts/download.php'; ".
        "} else {".
        " window.close();".
        "}".
        "\n//-->\n</script>";
    }
    
    //--------------------------------------------------------------------------
    // overloaded php function strtolower
    //--------------------------------------------------------------------------
    protected function StrToLower($str){
        if($this->lang_name == "en"){
            return strtolower($str);
        }else{
            return mb_StrToLower($str, mb_detect_encoding($str));      
        }       
    }

    //--------------------------------------------------------------------------
    // check if there is any resizable field
    //--------------------------------------------------------------------------
    protected function ResizableFieldExists(){
        if(is_array($this->columns_edit_mode)){        
            foreach($this->columns_edit_mode as $fldName => $fldValue){
                foreach($fldValue as $key => $val){
                    if(($key == "resizable") && (($val == true) || ($val == "true"))) return true;
                }
            }
        }
        return false;
    }

    //--------------------------------------------------------------------------
    // check if there is any autosuggest (autocomplete) field exists (in filter)
    //--------------------------------------------------------------------------
    protected function AutosuggestFieldExists(){
        if(is_array($this->filter_fields)){
            foreach($this->filter_fields as $fldName => $fldValue){
                foreach($fldValue as $key => $val){
                    if(($key == "autocomplete") && (($val == true) || ($val == "true"))) return true;
                }
            }            
        }
        return false;        
    }
    
    //--------------------------------------------------------------------------
    // check if there is any datetime field
    //--------------------------------------------------------------------------
    protected function DatetimeFieldExists($cal_type = ""){
        $found_field_type = false;
        $found_calendar_type = false;
        if(is_array($this->columns_edit_mode)){        
            foreach($this->columns_edit_mode as $fldName => $fldValue){
                foreach($fldValue as $key => $val){
                    if($key == "type"){
                        if(($val == "date") || ($val == "datedmy") || ($val == "datetime") || ($val == "datetimedmy") || ($val == "time")){
                            $found_field_type = true;
                        }
                    }
                    if($key == "calendar_type"){
                        if(strtolower($val) == $cal_type){
                            $found_calendar_type = true;
                        }
                    }
                    if($found_field_type && $found_calendar_type) return true;    
                }
            }
        }
        return false;
    }    

    //--------------------------------------------------------------------------
    // check if there is any field with magnifying attribute
    //--------------------------------------------------------------------------
    protected function MagnifyingFieldExists($req_mode = ""){
        if(($req_mode == "add") || ($req_mode == "edit")){
            if(isset($this->columns_edit_mode)){
                foreach($this->columns_edit_mode as $fldName => $fldValue){
                    foreach($fldValue as $key => $val){
                        if(($key == "magnify") && (($val == true) || ($val == "true"))){ return true; }
                    }
                }
            }            
        }else{
            if(isset($this->columns_view_mode)){
                foreach($this->columns_view_mode as $fldName => $fldValue){
                    foreach($fldValue as $key => $val){
                        if(($key == "magnify") && (($val == true) || ($val == "true"))){ return true; }
                    }
                }
            }
        }
        return false;
    }
    
    //--------------------------------------------------------------------------
    // check if there is any field with floating tool tips
    //--------------------------------------------------------------------------
    protected function FloatingToolTipsFieldExists(){
        $tooltip_allowed = false;
        if(isset($this->columns_view_mode)){
            foreach($this->columns_view_mode as $fldName => $fldValue){
                foreach($fldValue as $key => $val){
                    if(($key == "tooltip") && (($val == true) || ($val == "true"))){ $tooltip_allowed = true; }
                    if($tooltip_allowed && ($key == "tooltip_type") && (strtolower($val) == "floating")) { return true; }
                }
            }
        }
        return false;
    }
    
    //--------------------------------------------------------------------------
    // check if there is any wysiwyg field 
    //--------------------------------------------------------------------------
    protected function WysiwygFieldExists(){
        if(is_array($this->columns_edit_mode)){
            foreach($this->columns_edit_mode as $fldName => $fldValue){
                foreach($fldValue as $key => $val){
                    if(($key == "edit_type") && (strtolower($val) == "wysiwyg")) return true;
                }
            }            
        }
        return false;
    }    

    //--------------------------------------------------------------------------
    // get remote file content
    //--------------------------------------------------------------------------
    protected function HttpGetFile($url)  {    
        $url_stuff = parse_url($url);
        $port = isset($url_stuff['port']) ? $url_stuff['port']:80;     
        $fp = fsockopen($url_stuff['host'], $port);     
        $query  = 'GET ' . $url_stuff['path'] . " HTTP/1.0\n";
        $query .= 'Host: ' . $url_stuff['host'];
        $query .= "\n\n";     
        fwrite($fp, $query);    
        while ($line = fread($fp, 1024)) {
           $buffer .= $line;
        }     
        preg_match('/Content-Length: ([0-9]+)/', $buffer, $parts);
        return substr($buffer, - $parts[1]);
    }    

    //--------------------------------------------------------------------------
    // get http port 
    //--------------------------------------------------------------------------
    protected function GetPort(){        
        $port = "";
        if(isset($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] != "80"){
            $port = ":".$_SERVER['SERVER_PORT'];
        }
        return $port;        
    }    

    //--------------------------------------------------------------------------
    // get Protocol (http/s)
    //--------------------------------------------------------------------------
    protected function GetProtocol(){        
        $protocol = "http://";
        if((isset($_SERVER['HTTPS']) && (strtolower($_SERVER['HTTPS']) != "off")) ||
            strtolower(substr($_SERVER['SERVER_PROTOCOL'], 0, 5)) == "https"){
            $protocol = "https://";
        }
        return $protocol;        
    }

    //--------------------------------------------------------------------------
    // get Server Name
    //--------------------------------------------------------------------------
    protected function GetServerName(){
        $server = (isset($_SERVER['HTTP_HOST'])) ? $_SERVER['HTTP_HOST'] : "";
        $colon = strpos($server,':');
        if ($colon > 0 && $colon < strlen($server)){
            $server = substr($server, 0, $colon);
        }
        return $server;
    }
    
    //--------------------------------------------------------------------------
    // return last substring occurence
    //--------------------------------------------------------------------------
    protected function LastSubStrOccurence($string, $substring){
        $string = str_replace("\t", " ", $string);
        $string = str_replace("\n", " ", $string);                
        $string = strrev(strtolower($string));
        $substring = strrev(strtolower($substring));
        return strpos($string, $substring);
    }
  
    //--------------------------------------------------------------------------
    // gets random string
    //--------------------------------------------------------------------------
    protected function GetRandomString($length = 20) {
        $template_alpha = "abcdefghijklmnopqrstuvwxyz";
        $template_alphanumeric = "1234567890abcdefghijklmnopqrstuvwxyz";
        settype($template, "string");
        settype($length, "integer");
        settype($rndstring, "string");
        settype($a, "integer");
        settype($b, "integer");
        $b = rand(0, strlen($template_alpha) - 1);
        $rndstring .= $template_alpha[$b];        
        for ($a = 0; $a < $length-1; $a++) {
            $b = rand(0, strlen($template_alphanumeric) - 1);
            $rndstring .= $template_alphanumeric[$b];
        }       
        return $rndstring;       
    }

    //--------------------------------------------------------------------------
    // set browser definitions
    //--------------------------------------------------------------------------
    protected function SetBrowserDefinitions(){
        $bd = array();
        
        $agent = $_SERVER['HTTP_USER_AGENT'];
        // initialize properties
        $bd['platform'] = "Windows";
        $bd['browser'] = "MSIE";
        $bd['version'] = "6.0";    
          
        // find operating system
        if (eregi("win", $agent))       $bd['platform'] = "Windows";
        elseif (eregi("mac", $agent))   $bd['platform'] = "MacIntosh";
        elseif (eregi("linux", $agent)) $bd['platform'] = "Linux";
        elseif (eregi("OS/2", $agent))  $bd['platform'] = "OS/2";
        elseif (eregi("BeOS", $agent))  $bd['platform'] = "BeOS";
        
        // test for Opera
        if (eregi("opera",$agent)){
            $val = stristr($agent, "opera");
            if (eregi("/", $val)){
                $val = explode("/",$val); $bd['browser'] = $val[0]; $val = explode(" ",$val[1]); $bd['version'] = $val[0];
            }else{
                $val = explode(" ",stristr($val,"opera")); $bd['browser'] = $val[0]; $bd['version'] = $val[1];
            }
        // test for MS Internet Explorer version 1
        }elseif(eregi("microsoft internet explorer", $agent)){
            $bd['browser'] = "MSIE"; $bd['version'] = "1.0"; $var = stristr($agent, "/");
            if (ereg("308|425|426|474|0b1", $var)) $bd['version'] = "1.5";
        // test for MS Internet Explorer
        }elseif(eregi("msie",$agent) && !eregi("opera",$agent)){
            $val = explode(" ",stristr($agent,"msie")); $bd['browser'] = $val[0]; $bd['version'] = $val[1];
        // test for MS Pocket Internet Explorer
        }elseif(eregi("mspie",$agent) || eregi('pocket', $agent)){
            $val = explode(" ",stristr($agent,"mspie")); $bd['browser'] = "MSPIE"; $bd['platform'] = "WindowsCE";
            if (eregi("mspie", $agent)){
                $bd['version'] = $val[1];
            }else{
                $val = explode("/",$agent);     $bd['version'] = $val[1];
            }
        // test for Firebird
        }elseif(eregi("firebird", $agent)){
            $bd['browser']="Firebird"; $val = stristr($agent, "Firebird"); $val = explode("/",$val); $bd['version'] = $val[1];
        // test for Firefox
        }elseif(eregi("Firefox", $agent)){
            $bd['browser']="Firefox"; $val = stristr($agent, "Firefox"); $val = explode("/",$val); $bd['version'] = $val[1];
        // test for Mozilla Alpha/Beta Versions
        }elseif(eregi("mozilla",$agent) && eregi("rv:[0-9].[0-9][a-b]",$agent) && !eregi("netscape",$agent)){
            $bd['browser'] = "Mozilla"; $val = explode(" ",stristr($agent,"rv:")); eregi("rv:[0-9].[0-9][a-b]",$agent,$val); $bd['version'] = str_replace("rv:","",$val[0]);
        // test for Mozilla Stable Versions
        }elseif(eregi("mozilla",$agent) && eregi("rv:[0-9]\.[0-9]",$agent) && !eregi("netscape",$agent)){
            $bd['browser'] = "Mozilla"; $val = explode(" ",stristr($agent,"rv:")); eregi("rv:[0-9]\.[0-9]\.[0-9]",$agent,$val); $bd['version'] = str_replace("rv:","",$val[0]);
        // remaining two tests are for Netscape
        }elseif(eregi("netscape",$agent)){
            $val = explode(" ",stristr($agent,"netscape")); $val = explode("/",$val[0]); $bd['browser'] = $val[0]; $bd['version'] = $val[1];
        }elseif(eregi("mozilla",$agent) && !eregi("rv:[0-9]\.[0-9]\.[0-9]",$agent)){
            $val = explode(" ",stristr($agent,"mozilla")); $val = explode("/",$val[0]); $bd['browser'] = "Netscape"; $bd['version'] = $val[1];
        }
        // clean up extraneous garbage that may be in the name
        $bd['browser'] = ereg_replace("[^a-z,A-Z]", "", $bd['browser']);
        $bd['version'] = ereg_replace("[^0-9,.,a-z,A-Z]", "", $bd['version']);
        
        $this->browser_name     = $bd['browser'];
        $this->browser_version  = $bd['version'];
        $this->platform         = $bd['platform'];
    }

    //--------------------------------------------------------------------------
    // get Language Abbreviation for JS AFV
    //--------------------------------------------------------------------------    
    protected function GetLangAbbrForJSAFV(){
        $return_abbrv = "en";
        switch($this->lang_name){
            case "fr":
                $return_abbrv = "fr"; break;
            case "en":
            default:
                $return_abbrv = "en"; break;
        }
        return $return_abbrv;
    }
    
    //--------------------------------------------------------------------------
    // get Language Abbreviation for Calendar
    //--------------------------------------------------------------------------    
    protected function GetLangAbbrForCalendar(){
        $return_abbrv = "en";
        switch($this->lang_name){
            case "ar": $return_abbrv = "en"; break; // Arabic
            case "hr": $return_abbrv = "hr"; break; // Bosnian/Croatian            
            case "bg": $return_abbrv = "bg"; break; // Bulgarian
            case "pb": $return_abbrv = "pt"; break; // Brazilian Portuguese    
            case "ca": $return_abbrv = "ca"; break; // Catala
            case "ch": $return_abbrv = "cn"; break; // Chinese
            case "cz": $return_abbrv = "cs"; break; // Czech
            case "de": $return_abbrv = "de"; break; // German                
            case "es": $return_abbrv = "es"; break; // Espanol
            case "fr": $return_abbrv = "fr"; break; // Francais
            case "gk": $return_abbrv = "en"; break; // Greek
            case "he": $return_abbrv = "he"; break; // Hebrew
            case "hu": $return_abbrv = "hu"; break; // Hungarian
            case "it": $return_abbrv = "it"; break; // Italiano
            case "nl": $return_abbrv = "nl"; break; // Netherlands/"Vlaams"(Flemish)
            case "pl": $return_abbrv = "pl"; break; // Polish
            case "ro_utf8": 
            case "ro": $return_abbrv = "ro"; break; // Romanian
            case "ru": $return_abbrv = "ru"; break; // Russian
            case "sr": $return_abbrv = "en"; break; // Serbian
            case "se": $return_abbrv = "sv"; break; // Swedish
            case "tr": $return_abbrv = "tr"; break; // Turkish
            case "en":
            default:
                $return_abbrv = "en"; break;
        }
        return $return_abbrv;
    }    

}// end class

?>