/*
This file is part of Ext JS 4.1

Copyright (c) 2011-2012 Sencha Inc

Contact:  http://www.sencha.com/contact

Pre-release code in the Ext repository is intended for development purposes only and will
not always be stable. 

Use of pre-release code is permitted with your application at your own risk under standard
Ext license terms. Public redistribution is prohibited.

For early licensing, please contact us at licensing@sencha.com

Build date: 2012-02-21 23:18:31 (3a639ae9dd5443bffbde7bec9922e6fb07a923a8)
*/
/**
 * @class Ext
 * @singleton
 */
var Ext = Ext || {};
Ext._startTime = new Date().getTime();
(function() {
    var global = this,
        objectPrototype = Object.prototype,
        toString = objectPrototype.toString,
        enumerables = true,
        enumerablesTest = { toString: 1 },
        emptyFn = function(){},
        i;

    Ext.global = global;

    for (i in enumerablesTest) {
        enumerables = null;
    }

    if (enumerables) {
        enumerables = ['hasOwnProperty', 'valueOf', 'isPrototypeOf', 'propertyIsEnumerable',
                       'toLocaleString', 'toString', 'constructor'];
    }

    /**
     * An array containing extra enumerables for old browsers
     * @property {String[]}
     */
    Ext.enumerables = enumerables;

    /**
     * Copies all the properties of config to the specified object.
     * Note that if recursive merging and cloning without referencing the original objects / arrays is needed, use
     * {@link Ext.Object#merge} instead.
     * @param {Object} object The receiver of the properties
     * @param {Object} config The source of the properties
     * @param {Object} defaults A different object that will also be applied for default values
     * @return {Object} returns obj
     */
    Ext.apply = function(object, config, defaults) {
        if (defaults) {
            Ext.apply(object, defaults);
        }

        if (object && config && typeof config === 'object') {
            var i, j, k;

            for (i in config) {
                object[i] = config[i];
            }

            if (enumerables) {
                for (j = enumerables.length; j--;) {
                    k = enumerables[j];
                    if (config.hasOwnProperty(k)) {
                        object[k] = config[k];
                    }
                }
            }
        }

        return object;
    };

    Ext.buildSettings = Ext.apply({
        baseCSSPrefix: 'x-',
        scopeResetCSS: false
    }, Ext.buildSettings || {});

    Ext.apply(Ext, {

        /**
         * @property {String} [name='Ext']
         * <p>The name of the property in the global namespace (The <code>window</code> in browser environments) which refers to the current instance of Ext.</p>
         * <p>This is usually <code>"Ext"</code>, but if a sandboxed build of ExtJS is being used, this will be an alternative name.</p>
         * <p>If code is being generated for use by <code>eval</code> or to create a <code>new Function</code>, and the global instance
         * of Ext must be referenced, this is the name that should be built into the code.</p>
         */
        name: Ext.sandboxName || 'Ext',

        /**
         * A reusable empty function
         */
        emptyFn: emptyFn,

        /**
         * A zero length string which will pass a truth test. Useful for passing to methods
         * which use a truth test to reject <i>falsy</i> values where a string value must be cleared.
         */
        emptyString: new String(),

        baseCSSPrefix: Ext.buildSettings.baseCSSPrefix,

        /**
         * Copies all the properties of config to object if they don't already exist.
         * @param {Object} object The receiver of the properties
         * @param {Object} config The source of the properties
         * @return {Object} returns obj
         */
        applyIf: function(object, config) {
            var property;

            if (object) {
                for (property in config) {
                    if (object[property] === undefined) {
                        object[property] = config[property];
                    }
                }
            }

            return object;
        },

        /**
         * Iterates either an array or an object. This method delegates to
         * {@link Ext.Array#each Ext.Array.each} if the given value is iterable, and {@link Ext.Object#each Ext.Object.each} otherwise.
         *
         * @param {Object/Array} object The object or array to be iterated.
         * @param {Function} fn The function to be called for each iteration. See and {@link Ext.Array#each Ext.Array.each} and
         * {@link Ext.Object#each Ext.Object.each} for detailed lists of arguments passed to this function depending on the given object
         * type that is being iterated.
         * @param {Object} scope (Optional) The scope (`this` reference) in which the specified function is executed.
         * Defaults to the object being iterated itself.
         * @markdown
         */
        iterate: function(object, fn, scope) {
            if (Ext.isEmpty(object)) {
                return;
            }

            if (scope === undefined) {
                scope = object;
            }

            if (Ext.isIterable(object)) {
                Ext.Array.each.call(Ext.Array, object, fn, scope);
            }
            else {
                Ext.Object.each.call(Ext.Object, object, fn, scope);
            }
        }
    });

    Ext.apply(Ext, {

        /**
         * This method deprecated. Use {@link Ext#define Ext.define} instead.
         * @method
         * @param {Function} superclass
         * @param {Object} overrides
         * @return {Function} The subclass constructor from the <tt>overrides</tt> parameter, or a generated one if not provided.
         * @deprecated 4.0.0 Use {@link Ext#define Ext.define} instead
         */
        extend: function() {
            // inline overrides
            var objectConstructor = objectPrototype.constructor,
                inlineOverrides = function(o) {
                for (var m in o) {
                    if (!o.hasOwnProperty(m)) {
                        continue;
                    }
                    this[m] = o[m];
                }
            };

            return function(subclass, superclass, overrides) {
                // First we check if the user passed in just the superClass with overrides
                if (Ext.isObject(superclass)) {
                    overrides = superclass;
                    superclass = subclass;
                    subclass = overrides.constructor !== objectConstructor ? overrides.constructor : function() {
                        superclass.apply(this, arguments);
                    };
                }


                // We create a new temporary class
                var F = function() {},
                    subclassProto, superclassProto = superclass.prototype;

                F.prototype = superclassProto;
                subclassProto = subclass.prototype = new F();
                subclassProto.constructor = subclass;
                subclass.superclass = superclassProto;

                if (superclassProto.constructor === objectConstructor) {
                    superclassProto.constructor = superclass;
                }

                subclass.override = function(overrides) {
                    Ext.override(subclass, overrides);
                };

                subclassProto.override = inlineOverrides;
                subclassProto.proto = subclassProto;

                subclass.override(overrides);
                subclass.extend = function(o) {
                    return Ext.extend(subclass, o);
                };

                return subclass;
            };
        }(),

        /**
         * Proxy to {@link Ext.Base#override}. Please refer {@link Ext.Base#override} for further details.
         *
         * @param {Object} cls The class to override
         * @param {Object} overrides The properties to add to origClass. This should be specified as an object literal
         * containing one or more properties.
         * @method override
         * @markdown
         * @deprecated 4.1.0 Use {@link Ext#define Ext.define} instead
         */
        override: function(cls, overrides) {
            if (cls.$isClass) {
                return cls.override(overrides);
            }
            else {
                Ext.apply(cls.prototype, overrides);
            }
        }
    });

    // A full set of static methods to do type checking
    Ext.apply(Ext, {

        /**
         * Returns the given value itself if it's not empty, as described in {@link Ext#isEmpty}; returns the default
         * value (second argument) otherwise.
         *
         * @param {Object} value The value to test
         * @param {Object} defaultValue The value to return if the original value is empty
         * @param {Boolean} allowBlank (optional) true to allow zero length strings to qualify as non-empty (defaults to false)
         * @return {Object} value, if non-empty, else defaultValue
         */
        valueFrom: function(value, defaultValue, allowBlank){
            return Ext.isEmpty(value, allowBlank) ? defaultValue : value;
        },

        /**
         * Returns the type of the given variable in string format. List of possible values are:
         *
         * - `undefined`: If the given value is `undefined`
         * - `null`: If the given value is `null`
         * - `string`: If the given value is a string
         * - `number`: If the given value is a number
         * - `boolean`: If the given value is a boolean value
         * - `date`: If the given value is a `Date` object
         * - `function`: If the given value is a function reference
         * - `object`: If the given value is an object
         * - `array`: If the given value is an array
         * - `regexp`: If the given value is a regular expression
         * - `element`: If the given value is a DOM Element
         * - `textnode`: If the given value is a DOM text node and contains something other than whitespace
         * - `whitespace`: If the given value is a DOM text node and contains only whitespace
         *
         * @param {Object} value
         * @return {String}
         * @markdown
         */
        typeOf: function(value) {
            if (value === null) {
                return 'null';
            }

            var type = typeof value;

            if (type === 'undefined' || type === 'string' || type === 'number' || type === 'boolean') {
                return type;
            }

            var typeToString = toString.call(value);

            switch(typeToString) {
                case '[object Array]':
                    return 'array';
                case '[object Date]':
                    return 'date';
                case '[object Boolean]':
                    return 'boolean';
                case '[object Number]':
                    return 'number';
                case '[object RegExp]':
                    return 'regexp';
            }

            if (type === 'function') {
                return 'function';
            }

            if (type === 'object') {
                if (value.nodeType !== undefined) {
                    if (value.nodeType === 3) {
                        return (/\S/).test(value.nodeValue) ? 'textnode' : 'whitespace';
                    }
                    else {
                        return 'element';
                    }
                }

                return 'object';
            }

        },

        /**
         * Returns true if the passed value is empty, false otherwise. The value is deemed to be empty if it is either:
         *
         * - `null`
         * - `undefined`
         * - a zero-length array
         * - a zero-length string (Unless the `allowEmptyString` parameter is set to `true`)
         *
         * @param {Object} value The value to test
         * @param {Boolean} allowEmptyString (optional) true to allow empty strings (defaults to false)
         * @return {Boolean}
         * @markdown
         */
        isEmpty: function(value, allowEmptyString) {
            return (value === null) || (value === undefined) || (!allowEmptyString ? value === '' : false) || (Ext.isArray(value) && value.length === 0);
        },

        /**
         * Returns true if the passed value is a JavaScript Array, false otherwise.
         *
         * @param {Object} target The target to test
         * @return {Boolean}
         * @method
         */
        isArray: ('isArray' in Array) ? Array.isArray : function(value) {
            return toString.call(value) === '[object Array]';
        },

        /**
         * Returns true if the passed value is a JavaScript Date object, false otherwise.
         * @param {Object} object The object to test
         * @return {Boolean}
         */
        isDate: function(value) {
            return toString.call(value) === '[object Date]';
        },

        /**
         * Returns true if the passed value is a JavaScript Object, false otherwise.
         * @param {Object} value The value to test
         * @return {Boolean}
         * @method
         */
        isObject: (toString.call(null) === '[object Object]') ?
        function(value) {
            // check ownerDocument here as well to exclude DOM nodes
            return value !== null && value !== undefined && toString.call(value) === '[object Object]' && value.ownerDocument === undefined;
        } :
        function(value) {
            return toString.call(value) === '[object Object]';
        },

        /**
         * @private
         */
        isSimpleObject: function(value) {
            return value instanceof Object && value.constructor === Object;
        },
        /**
         * Returns true if the passed value is a JavaScript 'primitive', a string, number or boolean.
         * @param {Object} value The value to test
         * @return {Boolean}
         */
        isPrimitive: function(value) {
            var type = typeof value;

            return type === 'string' || type === 'number' || type === 'boolean';
        },

        /**
         * Returns true if the passed value is a JavaScript Function, false otherwise.
         * @param {Object} value The value to test
         * @return {Boolean}
         * @method
         */
        isFunction:
        // Safari 3.x and 4.x returns 'function' for typeof <NodeList>, hence we need to fall back to using
        // Object.prototype.toString (slower)
        (typeof document !== 'undefined' && typeof document.getElementsByTagName('body') === 'function') ? function(value) {
            return toString.call(value) === '[object Function]';
        } : function(value) {
            return typeof value === 'function';
        },

        /**
         * Returns true if the passed value is a number. Returns false for non-finite numbers.
         * @param {Object} value The value to test
         * @return {Boolean}
         */
        isNumber: function(value) {
            return typeof value === 'number' && isFinite(value);
        },

        /**
         * Validates that a value is numeric.
         * @param {Object} value Examples: 1, '1', '2.34'
         * @return {Boolean} True if numeric, false otherwise
         */
        isNumeric: function(value) {
            return !isNaN(parseFloat(value)) && isFinite(value);
        },

        /**
         * Returns true if the passed value is a string.
         * @param {Object} value The value to test
         * @return {Boolean}
         */
        isString: function(value) {
            return typeof value === 'string';
        },

        /**
         * Returns true if the passed value is a boolean.
         *
         * @param {Object} value The value to test
         * @return {Boolean}
         */
        isBoolean: function(value) {
            return typeof value === 'boolean';
        },

        /**
         * Returns true if the passed value is an HTMLElement
         * @param {Object} value The value to test
         * @return {Boolean}
         */
        isElement: function(value) {
            return value ? value.nodeType === 1 : false;
        },

        /**
         * Returns true if the passed value is a TextNode
         * @param {Object} value The value to test
         * @return {Boolean}
         */
        isTextNode: function(value) {
            return value ? value.nodeName === "#text" : false;
        },

        /**
         * Returns true if the passed value is defined.
         * @param {Object} value The value to test
         * @return {Boolean}
         */
        isDefined: function(value) {
            return typeof value !== 'undefined';
        },

        /**
         * Returns true if the passed value is iterable, false otherwise
         * @param {Object} value The value to test
         * @return {Boolean}
         */
        isIterable: function(value) {
            var type = typeof value,
                checkLength = false;
            if (value && type != 'string') {
                // Functions have a length property, so we need to filter them out
                if (type == 'function') {
                    // In Safari, NodeList/HTMLCollection both return "function" when using typeof, so we need
                    // to explicitly check them here.
                    if (Ext.isSafari) {
                        checkLength = value instanceof NodeList || value instanceof HTMLCollection;
                    }
                } else {
                    checkLength = true;
                }
            }
            return checkLength ? value.length !== undefined : false;
        }
    });

    Ext.apply(Ext, {

        /**
         * Clone almost any type of variable including array, object, DOM nodes and Date without keeping the old reference
         * @param {Object} item The variable to clone
         * @return {Object} clone
         */
        clone: function(item) {
            if (item === null || item === undefined) {
                return item;
            }

            // DOM nodes
            // TODO proxy this to Ext.Element.clone to handle automatic id attribute changing
            // recursively
            if (item.nodeType && item.cloneNode) {
                return item.cloneNode(true);
            }

            var type = toString.call(item);

            // Date
            if (type === '[object Date]') {
                return new Date(item.getTime());
            }

            var i, j, k, clone, key;

            // Array
            if (type === '[object Array]') {
                i = item.length;

                clone = [];

                while (i--) {
                    clone[i] = Ext.clone(item[i]);
                }
            }
            // Object
            else if (type === '[object Object]' && item.constructor === Object) {
                clone = {};

                for (key in item) {
                    clone[key] = Ext.clone(item[key]);
                }

                if (enumerables) {
                    for (j = enumerables.length; j--;) {
                        k = enumerables[j];
                        clone[k] = item[k];
                    }
                }
            }

            return clone || item;
        },

        /**
         * @private
         * Generate a unique reference of Ext in the global scope, useful for sandboxing
         */
        getUniqueGlobalNamespace: function() {
            var uniqueGlobalNamespace = this.uniqueGlobalNamespace;

            if (uniqueGlobalNamespace === undefined) {
                var i = 0;

                do {
                    uniqueGlobalNamespace = 'ExtBox' + (++i);
                } while (Ext.global[uniqueGlobalNamespace] !== undefined);

                Ext.global[uniqueGlobalNamespace] = Ext;
                this.uniqueGlobalNamespace = uniqueGlobalNamespace;
            }

            return uniqueGlobalNamespace;
        },
        
        /**
         * @private
         */
        functionFactoryCache: {},
        
        cacheableFunctionFactory: function() {
            var me = this,
                args = Array.prototype.slice.call(arguments),
                cache = me.functionFactoryCache,
                idx, fn, ln;
                
             if (Ext.isSandboxed) {
                ln = args.length;
                if (ln > 0) {
                    ln--;
                    args[ln] = 'var Ext=window.' + Ext.name + ';' + args[ln];
                }
            }
            idx = args.join('');
            fn = cache[idx];
            if (!fn) {
                fn = Function.prototype.constructor.apply(Function.prototype, args);
                
                cache[idx] = fn;
            }
            return fn;
        },
        
        functionFactory: function() {
            var me = this,
                args = Array.prototype.slice.call(arguments),
                ln;
                
            if (Ext.isSandboxed) {
                ln = args.length;
                if (ln > 0) {
                    ln--;
                    args[ln] = 'var Ext=window.' + Ext.name + ';' + args[ln];
                }
            }
     
            return Function.prototype.constructor.apply(Function.prototype, args);
        },

        /**
         * @property
         * @private
         */
        globalEval: ('execScript' in global) ? function(code) {
            global.execScript(code)
        } : function(code) {
            (function(){
                eval(code);
            })();
        },

        /**
         * @private
         * @property
         */
        Logger: {
            verbose: emptyFn,
            log: emptyFn,
            info: emptyFn,
            warn: emptyFn,
            error: function(message) {
                throw new Error(message);
            },
            deprecate: emptyFn
        }
    });

    /**
     * Old alias to {@link Ext#typeOf}
     * @deprecated 4.0.0 Use {@link Ext#typeOf} instead
     * @method
     * @inheritdoc Ext#typeOf
     */
    Ext.type = Ext.typeOf;

})();

/**
 * @author Jacky Nguyen <jacky@sencha.com>
 * @docauthor Jacky Nguyen <jacky@sencha.com>
 * @class Ext.Version
 *
 * A utility class that wrap around a string version number and provide convenient
 * method to perform comparison. See also: {@link Ext.Version#compare compare}. Example:

    var version = new Ext.Version('1.0.2beta');
    console.log("Version is " + version); // Version is 1.0.2beta

    console.log(version.getMajor()); // 1
    console.log(version.getMinor()); // 0
    console.log(version.getPatch()); // 2
    console.log(version.getBuild()); // 0
    console.log(version.getRelease()); // beta

    console.log(version.isGreaterThan('1.0.1')); // True
    console.log(version.isGreaterThan('1.0.2alpha')); // True
    console.log(version.isGreaterThan('1.0.2RC')); // False
    console.log(version.isGreaterThan('1.0.2')); // False
    console.log(version.isLessThan('1.0.2')); // True

    console.log(version.match(1.0)); // True
    console.log(version.match('1.0.2')); // True

 * @markdown
 */
(function() {

// Current core version
var version = '4.1.0beta', Version;
    Ext.Version = Version = Ext.extend(Object, {

        /**
         * @param {String/Number} version The version number in the follow standard format: major[.minor[.patch[.build[release]]]]
         * Examples: 1.0 or 1.2.3beta or 1.2.3.4RC
         * @return {Ext.Version} this
         */
        constructor: function(version) {
            var parts, releaseStartIndex;

            if (version instanceof Version) {
                return version;
            }

            this.version = this.shortVersion = String(version).toLowerCase().replace(/_/g, '.').replace(/[\-+]/g, '');

            releaseStartIndex = this.version.search(/([^\d\.])/);

            if (releaseStartIndex !== -1) {
                this.release = this.version.substr(releaseStartIndex, version.length);
                this.shortVersion = this.version.substr(0, releaseStartIndex);
            }

            this.shortVersion = this.shortVersion.replace(/[^\d]/g, '');

            parts = this.version.split('.');

            this.major = parseInt(parts.shift() || 0, 10);
            this.minor = parseInt(parts.shift() || 0, 10);
            this.patch = parseInt(parts.shift() || 0, 10);
            this.build = parseInt(parts.shift() || 0, 10);

            return this;
        },

        /**
         * Override the native toString method
         * @private
         * @return {String} version
         */
        toString: function() {
            return this.version;
        },

        /**
         * Override the native valueOf method
         * @private
         * @return {String} version
         */
        valueOf: function() {
            return this.version;
        },

        /**
         * Returns the major component value
         * @return {Number} major
         */
        getMajor: function() {
            return this.major || 0;
        },

        /**
         * Returns the minor component value
         * @return {Number} minor
         */
        getMinor: function() {
            return this.minor || 0;
        },

        /**
         * Returns the patch component value
         * @return {Number} patch
         */
        getPatch: function() {
            return this.patch || 0;
        },

        /**
         * Returns the build component value
         * @return {Number} build
         */
        getBuild: function() {
            return this.build || 0;
        },

        /**
         * Returns the release component value
         * @return {Number} release
         */
        getRelease: function() {
            return this.release || '';
        },

        /**
         * Returns whether this version if greater than the supplied argument
         * @param {String/Number} target The version to compare with
         * @return {Boolean} True if this version if greater than the target, false otherwise
         */
        isGreaterThan: function(target) {
            return Version.compare(this.version, target) === 1;
        },

        /**
         * Returns whether this version if greater than or equal to the supplied argument
         * @param {String/Number} target The version to compare with
         * @return {Boolean} True if this version if greater than or equal to the target, false otherwise
         */
        isGreaterThanOrEqual: function(target) {
            return Version.compare(this.version, target) >= 0;
        },

        /**
         * Returns whether this version if smaller than the supplied argument
         * @param {String/Number} target The version to compare with
         * @return {Boolean} True if this version if smaller than the target, false otherwise
         */
        isLessThan: function(target) {
            return Version.compare(this.version, target) === -1;
        },

        /**
         * Returns whether this version if less than or equal to the supplied argument
         * @param {String/Number} target The version to compare with
         * @return {Boolean} True if this version if less than or equal to the target, false otherwise
         */
        isLessThanOrEqual: function(target) {
            return Version.compare(this.version, target) <= 0;
        },

        /**
         * Returns whether this version equals to the supplied argument
         * @param {String/Number} target The version to compare with
         * @return {Boolean} True if this version equals to the target, false otherwise
         */
        equals: function(target) {
            return Version.compare(this.version, target) === 0;
        },

        /**
         * Returns whether this version matches the supplied argument. Example:
         * <pre><code>
         * var version = new Ext.Version('1.0.2beta');
         * console.log(version.match(1)); // True
         * console.log(version.match(1.0)); // True
         * console.log(version.match('1.0.2')); // True
         * console.log(version.match('1.0.2RC')); // False
         * </code></pre>
         * @param {String/Number} target The version to compare with
         * @return {Boolean} True if this version matches the target, false otherwise
         */
        match: function(target) {
            target = String(target);
            return this.version.substr(0, target.length) === target;
        },

        /**
         * Returns this format: [major, minor, patch, build, release]. Useful for comparison
         * @return {Number[]}
         */
        toArray: function() {
            return [this.getMajor(), this.getMinor(), this.getPatch(), this.getBuild(), this.getRelease()];
        },

        /**
         * Returns shortVersion version without dots and release
         * @return {String}
         */
        getShortVersion: function() {
            return this.shortVersion;
        },

        /**
         * Convenient alias to {@link Ext.Version#isGreaterThan isGreaterThan}
         * @param {String/Number} target
         * @return {Boolean}
         */
        gt: function() {
            return this.isGreaterThan.apply(this, arguments);
        },

        /**
         * Convenient alias to {@link Ext.Version#isLessThan isLessThan}
         * @param {String/Number} target
         * @return {Boolean}
         */
        lt: function() {
            return this.isLessThan.apply(this, arguments);
        },

        /**
         * Convenient alias to {@link Ext.Version#isGreaterThanOrEqual isGreaterThanOrEqual}
         * @param {String/Number} target
         * @return {Boolean}
         */
        gtEq: function() {
            return this.isGreaterThanOrEqual.apply(this, arguments);
        },

        /**
         * Convenient alias to {@link Ext.Version#isLessThanOrEqual isLessThanOrEqual}
         * @param {String/Number} target
         * @return {Boolean}
         */
        ltEq: function() {
            return this.isLessThanOrEqual.apply(this, arguments);
        }
    });

    Ext.apply(Version, {
        // @private
        releaseValueMap: {
            'dev': -6,
            'alpha': -5,
            'a': -5,
            'beta': -4,
            'b': -4,
            'rc': -3,
            '#': -2,
            'p': -1,
            'pl': -1
        },

        /**
         * Converts a version component to a comparable value
         *
         * @static
         * @param {Object} value The value to convert
         * @return {Object}
         */
        getComponentValue: function(value) {
            return !value ? 0 : (isNaN(value) ? this.releaseValueMap[value] || value : parseInt(value, 10));
        },

        /**
         * Compare 2 specified versions, starting from left to right. If a part contains special version strings,
         * they are handled in the following order:
         * 'dev' < 'alpha' = 'a' < 'beta' = 'b' < 'RC' = 'rc' < '#' < 'pl' = 'p' < 'anything else'
         *
         * @static
         * @param {String} current The current version to compare to
         * @param {String} target The target version to compare to
         * @return {Number} Returns -1 if the current version is smaller than the target version, 1 if greater, and 0 if they're equivalent
         */
        compare: function(current, target) {
            var currentValue, targetValue, i;

            current = new Version(current).toArray();
            target = new Version(target).toArray();

            for (i = 0; i < Math.max(current.length, target.length); i++) {
                currentValue = this.getComponentValue(current[i]);
                targetValue = this.getComponentValue(target[i]);

                if (currentValue < targetValue) {
                    return -1;
                } else if (currentValue > targetValue) {
                    return 1;
                }
            }

            return 0;
        }
    });

    Ext.apply(Ext, {
        /**
         * @private
         */
        versions: {},

        /**
         * @private
         */
        lastRegisteredVersion: null,

        /**
         * Set version number for the given package name.
         *
         * @param {String} packageName The package name, for example: 'core', 'touch', 'extjs'
         * @param {String/Ext.Version} version The version, for example: '1.2.3alpha', '2.4.0-dev'
         * @return {Ext}
         */
        setVersion: function(packageName, version) {
            Ext.versions[packageName] = new Version(version);
            Ext.lastRegisteredVersion = Ext.versions[packageName];

            return this;
        },

        /**
         * Get the version number of the supplied package name; will return the last registered version
         * (last Ext.setVersion call) if there's no package name given.
         *
         * @param {String} packageName (Optional) The package name, for example: 'core', 'touch', 'extjs'
         * @return {Ext.Version} The version
         */
        getVersion: function(packageName) {
            if (packageName === undefined) {
                return Ext.lastRegisteredVersion;
            }

            return Ext.versions[packageName];
        },

        /**
         * Create a closure for deprecated code.
         *
    // This means Ext.oldMethod is only supported in 4.0.0beta and older.
    // If Ext.getVersion('extjs') returns a version that is later than '4.0.0beta', for example '4.0.0RC',
    // the closure will not be invoked
    Ext.deprecate('extjs', '4.0.0beta', function() {
        Ext.oldMethod = Ext.newMethod;

        ...
    });

         * @param {String} packageName The package name
         * @param {String} since The last version before it's deprecated
         * @param {Function} closure The callback function to be executed with the specified version is less than the current version
         * @param {Object} scope The execution scope (<tt>this</tt>) if the closure
         * @markdown
         */
        deprecate: function(packageName, since, closure, scope) {
            if (Version.compare(Ext.getVersion(packageName), since) < 1) {
                closure.call(scope);
            }
        }
    }); // End Versioning

    Ext.setVersion('core', version);

})();

/**
 * @class Ext.String
 *
 * A collection of useful static methods to deal with strings
 * @singleton
 */

Ext.String = (function() {
    var trimRegex     = /^[\x09\x0a\x0b\x0c\x0d\x20\xa0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u2028\u2029\u202f\u205f\u3000]+|[\x09\x0a\x0b\x0c\x0d\x20\xa0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u2028\u2029\u202f\u205f\u3000]+$/g,
        escapeRe      = /('|\\)/g,
        formatRe      = /\{(\d+)\}/g,
        escapeRegexRe = /([-.*+?^${}()|[\]\/\\])/g,
        basicTrimRe   = /^\s+|\s+$/g,
        whitespaceRe  = /\s+/,
        varReplace    = /(^[^a-z]*|[^\w])/gi,
        charToEntity  = {
            '&': '&amp;',
            '>': '&gt;',
            '<': '&lt;',
            '"': '&quot;'
        },
        entityToChar  = {
            '&amp;': '&',
            '&gt;': '>',
            '&lt;': '<',
            '&quot;': '"'
        },
        keys = [],
        key,
        charToEntityRegex,
        entityToCharRegex,
        htmlEncodeReplaceFn = function(match, capture) {
            return charToEntity[capture];
        },
        htmlEncode = function(value) {
            return (!value) ? value : String(value).replace(charToEntityRegex, htmlEncodeReplaceFn);
        },
        htmlDecodeReplaceFn = function(match, capture) {
            return (capture in entityToChar) ? entityToChar[capture] : String.fromCharCode(parseInt(capture.substr(2), 10));
        },
        htmlDecode = function(value) {
            return (!value) ? value : String(value).replace(entityToCharRegex, htmlDecodeReplaceFn);
        };

        // Compile RexExps for HTML encode and decode functions
        for (key in charToEntity) {
            keys.push(key);
        }
        charToEntityRegex = new RegExp('(' + keys.join('|') + ')', 'g');

        keys = [];
        for (key in entityToChar) {
            keys.push(key);
        }
        entityToCharRegex = new RegExp('(' + keys.join('|') + '|&#[0-9]{1,5};' + ')', 'g');

    return {

        /**
         * Converts a string of characters into a legal, parseable Javascript `var` name as long as the passed
         * string contains at least one alphabetic character. Non alphanumeric characters, and *leading* non alphabetic
         * characters will be removed.
         * @param {String} s A string to be converted into a `var` name.
         * @return {String} A legal Javascript `var` name.
         */
        createVarName: function(s) {
            return s.replace(varReplace, '');
        },

        /**
         * Convert certain characters (&, <, >, and ") to their HTML character equivalents for literal display in web pages.
         * @param {String} value The string to encode
         * @return {String} The encoded text
         * @method
         */
        htmlEncode: htmlEncode,

        /**
         * Convert certain characters (&, <, >, and ") from their HTML character equivalents.
         * @param {String} value The string to decode
         * @return {String} The decoded text
         * @method
         */
        htmlDecode: htmlDecode,

        /**
         * Appends content to the query string of a URL, handling logic for whether to place
         * a question mark or ampersand.
         * @param {String} url The URL to append to.
         * @param {String} string The content to append to the URL.
         * @return {String} The resulting URL
         */
        urlAppend : function(url, string) {
            if (!Ext.isEmpty(string)) {
                return url + (url.indexOf('?') === -1 ? '?' : '&') + string;
            }

            return url;
        },

        /**
         * Trims whitespace from either end of a string, leaving spaces within the string intact.  Example:
         * @example
    var s = '  foo bar  ';
    alert('-' + s + '-');         //alerts "- foo bar -"
    alert('-' + Ext.String.trim(s) + '-');  //alerts "-foo bar-"

         * @param {String} string The string to escape
         * @return {String} The trimmed string
         */
        trim: function(string) {
            return string.replace(trimRegex, "");
        },

        /**
         * Capitalize the given string
         * @param {String} string
         * @return {String}
         */
        capitalize: function(string) {
            return string.charAt(0).toUpperCase() + string.substr(1);
        },

        /**
         * Uncapitalize the given string
         * @param {String} string
         * @return {String}
         */
        uncapitalize: function(string) {
            return string.charAt(0).toLowerCase() + string.substr(1);
        },

        /**
         * Truncate a string and add an ellipsis ('...') to the end if it exceeds the specified length
         * @param {String} value The string to truncate
         * @param {Number} length The maximum length to allow before truncating
         * @param {Boolean} word True to try to find a common word break
         * @return {String} The converted text
         */
        ellipsis: function(value, len, word) {
            if (value && value.length > len) {
                if (word) {
                    var vs = value.substr(0, len - 2),
                    index = Math.max(vs.lastIndexOf(' '), vs.lastIndexOf('.'), vs.lastIndexOf('!'), vs.lastIndexOf('?'));
                    if (index !== -1 && index >= (len - 15)) {
                        return vs.substr(0, index) + "...";
                    }
                }
                return value.substr(0, len - 3) + "...";
            }
            return value;
        },

        /**
         * Escapes the passed string for use in a regular expression
         * @param {String} string
         * @return {String}
         */
        escapeRegex: function(string) {
            return string.replace(escapeRegexRe, "\\$1");
        },

        /**
         * Escapes the passed string for ' and \
         * @param {String} string The string to escape
         * @return {String} The escaped string
         */
        escape: function(string) {
            return string.replace(escapeRe, "\\$1");
        },

        /**
         * Utility function that allows you to easily switch a string between two alternating values.  The passed value
         * is compared to the current string, and if they are equal, the other value that was passed in is returned.  If
         * they are already different, the first value passed in is returned.  Note that this method returns the new value
         * but does not change the current string.
         * <pre><code>
        // alternate sort directions
        sort = Ext.String.toggle(sort, 'ASC', 'DESC');

        // instead of conditional logic:
        sort = (sort == 'ASC' ? 'DESC' : 'ASC');
           </code></pre>
         * @param {String} string The current string
         * @param {String} value The value to compare to the current string
         * @param {String} other The new value to use if the string already equals the first value passed in
         * @return {String} The new value
         */
        toggle: function(string, value, other) {
            return string === value ? other : value;
        },

        /**
         * Pads the left side of a string with a specified character.  This is especially useful
         * for normalizing number and date strings.  Example usage:
         *
         * <pre><code>
    var s = Ext.String.leftPad('123', 5, '0');
    // s now contains the string: '00123'
           </code></pre>
         * @param {String} string The original string
         * @param {Number} size The total length of the output string
         * @param {String} character (optional) The character with which to pad the original string (defaults to empty string " ")
         * @return {String} The padded string
         */
        leftPad: function(string, size, character) {
            var result = String(string);
            character = character || " ";
            while (result.length < size) {
                result = character + result;
            }
            return result;
        },

        /**
         * Allows you to define a tokenized string and pass an arbitrary number of arguments to replace the tokens.  Each
         * token must be unique, and must increment in the format {0}, {1}, etc.  Example usage:
         * <pre><code>
    var cls = 'my-class', text = 'Some text';
    var s = Ext.String.format('&lt;div class="{0}">{1}&lt;/div>', cls, text);
    // s now contains the string: '&lt;div class="my-class">Some text&lt;/div>'
           </code></pre>
         * @param {String} string The tokenized string to be formatted
         * @param {String} value1 The value to replace token {0}
         * @param {String} value2 Etc...
         * @return {String} The formatted string
         */
        format: function(format) {
            var args = Ext.Array.toArray(arguments, 1);
            return format.replace(formatRe, function(m, i) {
                return args[i];
            });
        },

        /**
         * Returns a string with a specified number of repititions a given string pattern.
         * The pattern be separated by a different string.
         *
         *      var s = Ext.String.repeat('---', 4); // = '------------'
         *      var t = Ext.String.repeat('--', 3, '/'); // = '--/--/--'
         *
         * @param {String} pattern The pattern to repeat.
         * @param {Number} count The number of times to repeat the pattern (may be 0).
         * @param {String} sep An option string to separate each pattern.
         */
        repeat: function(pattern, count, sep) {
            for (var buf = [], i = count; i--; ) {
                buf.push(pattern);
            }
            return buf.join(sep || '');
        },

        /**
         * Splits a string of space separated words into an array, trimming as needed. If the
         * words are already an array, it is returned.
         *
         * @param {String/Array} words
         */
        splitWords: function (words) {
            if (words && typeof words == 'string') {
                return words.replace(basicTrimRe, '').split(whitespaceRe);
            }
            return words || [];
        }
    };
})();

/**
 * Old alias to {@link Ext.String#htmlEncode}
 * @deprecated Use {@link Ext.String#htmlEncode} instead
 * @method
 * @member Ext
 * @inheritdoc Ext.String#htmlEncode
 */
Ext.htmlEncode = Ext.String.htmlEncode;


/**
 * Old alias to {@link Ext.String#htmlDecode}
 * @deprecated Use {@link Ext.String#htmlDecode} instead
 * @method
 * @member Ext
 * @inheritdoc Ext.String#htmlDecode
 */
Ext.htmlDecode = Ext.String.htmlDecode;

/**
 * Old alias to {@link Ext.String#urlAppend}
 * @deprecated Use {@link Ext.String#urlAppend} instead
 * @method
 * @member Ext
 * @inheritdoc Ext.String#urlAppend
 */
Ext.urlAppend = Ext.String.urlAppend;
/**
 * @class Ext.Number
 *
 * A collection of useful static methods to deal with numbers
 * @singleton
 */

Ext.Number = new function() {

    var me = this,
        isToFixedBroken = (0.9).toFixed() !== '1',
        math = Math;

    Ext.apply(this, {
        /**
         * Checks whether or not the passed number is within a desired range.  If the number is already within the
         * range it is returned, otherwise the min or max value is returned depending on which side of the range is
         * exceeded. Note that this method returns the constrained value but does not change the current number.
         * @param {Number} number The number to check
         * @param {Number} min The minimum number in the range
         * @param {Number} max The maximum number in the range
         * @return {Number} The constrained value if outside the range, otherwise the current value
         */
        constrain: function(number, min, max) {
            number = parseFloat(number);

            if (!isNaN(min)) {
                number = math.max(number, min);
            }
            if (!isNaN(max)) {
                number = math.min(number, max);
            }
            return number;
        },

        /**
         * Snaps the passed number between stopping points based upon a passed increment value.
         *
         * The difference between this and {@link #snapInRange} is that {@link #snapInRange} uses the minValue
         * when calculating snap points:
         *
         *     r = Ext.Number.snap(56, 2, 55, 65);        // Returns 56 - snap points are zero based
         *
         *     r = Ext.Number.snapInRange(56, 2, 55, 65); // Returns 57 - snap points are based from minValue
         *
         * @param {Number} value The unsnapped value.
         * @param {Number} increment The increment by which the value must move.
         * @param {Number} minValue The minimum value to which the returned value must be constrained. Overrides the increment.
         * @param {Number} maxValue The maximum value to which the returned value must be constrained. Overrides the increment.
         * @return {Number} The value of the nearest snap target.
         */
        snap : function(value, increment, minValue, maxValue) {
            var m;

            // If no value passed, or minValue was passed and value is less than minValue (anything < undefined is false)
            // Then use the minValue (or zero if the value was undefined)
            if (value === undefined || value < minValue) {
                return minValue || 0;
            }

            if (increment) {
                m = value % increment;
                if (m !== 0) {
                    value -= m;
                    if (m * 2 >= increment) {
                        value += increment;
                    } else if (m * 2 < -increment) {
                        value -= increment;
                    }
                }
            }
            return me.constrain(value, minValue,  maxValue);
        },

        /**
         * Snaps the passed number between stopping points based upon a passed increment value.
         *
         * The difference between this and {@link #snap} is that {@link #snap} does not use the minValue
         * when calculating snap points:
         *
         *     r = Ext.Number.snap(56, 2, 55, 65);        // Returns 56 - snap points are zero based
         *
         *     r = Ext.Number.snapInRange(56, 2, 55, 65); // Returns 57 - snap points are based from minValue
         *
         * @param {Number} value The unsnapped value.
         * @param {Number} increment The increment by which the value must move.
         * @param {Number} [minValue=0] The minimum value to which the returned value must be constrained.
         * @param {Number} [maxValue=Infinity] The maximum value to which the returned value must be constrained.
         * @return {Number} The value of the nearest snap target.
         */
        snapInRange : function(value, increment, minValue, maxValue) {
            var tween;

            // default minValue to zero
            minValue = (minValue || 0);

            // If value is undefined, or less than minValue, use minValue
            if (value === undefined || value < minValue) {
                return minValue;
            }

            // Calculate how many snap points from the minValue the passed value is.
            if (increment && (tween = ((value - minValue) % increment))) {
                value…