var JSON = $.JSON;

if (!JSON) {

    JSON = {};

}



(function () {

    "use strict";



    function f(n) {

        // Format integers to have at least two digits.

        return n < 10 ? '0' + n : n;

    }



    if (typeof Date.prototype.toJSON !== 'function') {



        Date.prototype.toJSON = function (key) {



            return isFinite(this.valueOf()) ?

                this.getUTCFullYear() + '-' +

                f(this.getUTCMonth() + 1) + '-' +

                f(this.getUTCDate()) + 'T' +

                f(this.getUTCHours()) + ':' +

                f(this.getUTCMinutes()) + ':' +

                f(this.getUTCSeconds()) + 'Z' : null;

        };



        String.prototype.toJSON =

            Number.prototype.toJSON =

            Boolean.prototype.toJSON = function (key) {

                return this.valueOf();

            };

    }



    var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,

        escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,

        gap,

        indent,

        meta = { // table of character substitutions

            '\b': '\\b',

            '\t': '\\t',

            '\n': '\\n',

            '\f': '\\f',

            '\r': '\\r',

            '"' : '\\"',

            '\\': '\\\\'

        },

        rep;





    function quote(string) {



        escapable.lastIndex = 0;

        return escapable.test(string) ? '"' + string.replace(escapable, function (a) {

            var c = meta[a];

            return typeof c === 'string' ? c :

                '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);

        }) + '"' : '"' + string + '"';

    }





    function str(key, holder) {

        var i, // The loop counter.

            k, // The member key.

            v, // The member value.

            length,

            mind = gap,

            partial,

            value = holder[key];



        if (value && typeof value === 'object' && typeof value.toJSON === 'function') {

            value = value.toJSON(key);

        }



        if (typeof rep === 'function') {

            value = rep.call(holder, key, value);

        }



        switch (typeof value) {

        case 'string':

            return quote(value);

        case 'number':

            return isFinite(value) ? String(value) : 'null';

        case 'boolean':

        case 'null':

            return String(value);

        case 'object':

            if (!value){

                return 'null';

            }

            gap += indent;

            partial = [];



            if (Object.prototype.toString.apply(value) === '[object Array]') {

                length = value.length;

                for (i = 0; i < length; i += 1) {

                    partial[i] = str(i, value) || 'null';

                }



                v = partial.length === 0 ? '[]' : gap ?

                    '[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']' :

                    '[' + partial.join(',') + ']';

                gap = mind;

                return v;

            }



            if (rep && typeof rep === 'object') {

                length = rep.length;

                for (i = 0; i < length; i += 1) {

                    k = rep[i];

                    if (typeof k === 'string') {

                        v = str(k, value);

                        if (v) {

                            partial.push(quote(k) + (gap ? ': ' : ':') + v);

                        }

                    }

                }

            } else {

                for (k in value) {

                    if (Object.prototype.hasOwnProperty.call(value, k)) {

                        v = str(k, value);

                        if (v) {

                            partial.push(quote(k) + (gap ? ': ' : ':') + v);

                        }

                    }

                }

            }



            v = partial.length === 0 ? '{}' : gap ?

                '{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}' :

                '{' + partial.join(',') + '}';

            gap = mind;

            return v;

        }

    }





    if (typeof JSON.stringify !== 'function') {

        JSON.stringify = function (value, replacer, space) {





            var i;

            gap = '';

            indent = '';





            if (typeof space === 'number') {

                for (i = 0; i < space; i += 1) {

                    indent += ' ';

                }







            } else if (typeof space === 'string') {

                indent = space;

            }





            rep = replacer;

            if (replacer && typeof replacer !== 'function' &&

                    (typeof replacer !== 'object' ||

                    typeof replacer.length !== 'number')) {

                throw new Error('JSON.stringify');

            }





            return str('', {'': value});

        };

    }





    if (typeof JSON.parse !== 'function') {

        JSON.parse = function (text, reviver) {

            var j;

            function walk(holder, key) {

                var k, v, value = holder[key];

                if (value && typeof value === 'object') {

                    for (k in value) {

                        if (Object.prototype.hasOwnProperty.call(value, k)) {

                            v = walk(value, k);

                            if (v !== undefined) {

                                value[k] = v;

                            } else {

                                delete value[k];

                            }

                        }

                    }

                }

                return reviver.call(holder, key, value);

            }

            text = String(text);

            cx.lastIndex = 0;

            if (cx.test(text)) {

                text = text.replace(cx, function (a) {

                    return '\\u' +

                        ('0000' + a.charCodeAt(0).toString(16)).slice(-4);

                });

            }

            if (/^[\],:{}\s]*$/

                    .test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@')

                        .replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']')

                        .replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {

                j = eval('(' + text + ')');



                return typeof reviver === 'function' ?

                    walk({'': j}, '') : j;

            }

            throw new SyntaxError('JSON.parse');

        };

    }



    (function($){

      if (!$.toJSONString) {

        $.toJSONString = function (obj,filter) {

            return JSON.stringify(obj, filter);

        };

       // Object.prototype.parseJSON= function (filter) {

       //     return JSON.parse(this, filter);

       // };

     }

    })(jQuery);



}());