/**
 * @class Ext
 *
 * The Ext namespace (global object) encapsulates all classes, singletons, and
 * utility methods provided by Sencha's libraries.
 *
 * Most user interface Components are at a lower level of nesting in the namespace,
 * but many common utility functions are provided as direct properties of the Ext namespace.
 *
 * Also many frequently used methods from other classes are provided as shortcuts
 * within the Ext namespace. For example {@link Ext#getCmp Ext.getCmp} aliases
 * {@link Ext.ComponentManager#get Ext.ComponentManager.get}.
 *
 * Many applications are initiated with {@link Ext#onReady Ext.onReady} which is
 * called once the DOM is ready. This ensures all scripts have been loaded,
 * preventing dependency issues. For example:
 *
 *     Ext.onReady(function(){
 *         new Ext.Component({
 *             renderTo: document.body,
 *             html: 'DOM ready!'
 *         });
 *     });
 *
 * For more information about how to use the Ext classes, see:
 *
 * - <a href="http://www.sencha.com/learn/">The Learning Center</a>
 * - <a href="http://www.sencha.com/learn/Ext_FAQ">The FAQ</a>
 * - <a href="http://www.sencha.com/forum/">The forums</a>
 *
 * @singleton
 */
Ext.apply(Ext, {
    userAgent: navigator.userAgent.toLowerCase(),
    cache: {},
    idSeed: 1000,
    windowId: 'ext-window',
    documentId: 'ext-document',

    /**
     * True when the document is fully initialized and ready for action
     */
    isReady: false,

    /**
     * True to automatically uncache orphaned Ext.Elements periodically
     */
    enableGarbageCollector: true,

    /**
     * True to automatically purge event listeners during garbageCollection.
     */
    enableListenerCollection: true,

    addCacheEntry: function(id, el, dom) {
        dom = dom || el.dom;

        //<debug>
        if (!dom) {
            // Without the DOM node we can't GC the entry
            Ext.Error.raise('Cannot add an entry to the element cache without the DOM node');
        }
        //</debug>

        var key = id || (el && el.id) || dom.id,
            entry = Ext.cache[key] || (Ext.cache[key] = {
                data: {},
                events: {},

                dom: dom,

                // Skip garbage collection for special elements (window, document, iframes)
                skipGarbageCollection: !!(dom.getElementById || dom.navigator)
            });

        if (el) {
            el.$cache = entry;
            // Inject the back link from the cache in case the cache entry
            // had already been created by Ext.fly. Ext.fly creates a cache entry with no el link.
            entry.el = el;
        }

        return entry;
    },
    
    updateCacheEntry: function(cacheItem, dom){
        cacheItem.dom = dom;
        if (cacheItem.el) {
            cacheItem.el.dom = dom;
        }
        return cacheItem;
    },

    /**
     * Generates unique ids. If the element already has an id, it is unchanged
     * @param {HTMLElement/Ext.Element} [el] The element to generate an id for
     * @param {String} prefix (optional) Id prefix (defaults "ext-gen")
     * @return {String} The generated Id.
     */
    id: function(el, prefix) {
        var me = this,
            sandboxPrefix = '';
        el = Ext.getDom(el, true) || {};
        if (el === document) {
            el.id = me.documentId;
        }
        else if (el === window) {
            el.id = me.windowId;
        }
        if (!el.id) {
            if (me.isSandboxed) {
                sandboxPrefix = Ext.sandboxName.toLowerCase() + '-';
            }
            el.id = sandboxPrefix + (prefix || "ext-gen") + (++Ext.idSeed);
        }
        return el.id;
    },

    escapeId: (function(){
        var validIdRe = /^[a-zA-Z_][a-zA-Z0-9_\-]*$/i,
            escapeRx = /([\W]{1})/g,
            leadingNumRx = /^(\d)/g,
            escapeFn = function(match, capture){
                return "\\" + capture;
            },
            numEscapeFn = function(match, capture){
                return '\\00' + capture.charCodeAt(0).toString(16) + ' ';
            };

        return function(id) {
            return validIdRe.test(id)
                ? id
                // replace the number portion last to keep the trailing ' '
                // from being escaped
                : id.replace(escapeRx, escapeFn)
                    .replace(leadingNumRx, numEscapeFn);
        };
    }()),

    /**
     * Returns the current document body as an {@link Ext.Element}.
     * @return Ext.Element The document body
     */
    getBody: (function() {
        var body;
        return function() {
            return body || (body = Ext.get(document.body));
        };
    }()),

    /**
     * Returns the current document head as an {@link Ext.Element}.
     * @return Ext.Element The document head
     * @method
     */
    getHead: (function() {
        var head;
        return function() {
            return head || (head = Ext.get(document.getElementsByTagName("head")[0]));
        };
    }()),

    /**
     * Returns the current HTML document object as an {@link Ext.Element}.
     * @return Ext.Element The document
     */
    getDoc: (function() {
        var doc;
        return function() {
            return doc || (doc = Ext.get(document));
        };
    }()),

    /**
     * This is shorthand reference to {@link Ext.ComponentManager#get}.
     * Looks up an existing {@link Ext.Component Component} by {@link Ext.Component#id id}
     *
     * @param {String} id The component {@link Ext.Component#id id}
     * @return Ext.Component The Component, `undefined` if not found, or `null` if a
     * Class was found.
    */
    getCmp: function(id) {
        return Ext.ComponentManager.get(id);
    },

    /**
     * Returns the current orientation of the mobile device
     * @return {String} Either 'portrait' or 'landscape'
     */
    getOrientation: function() {
        return window.innerHeight > window.innerWidth ? 'portrait' : 'landscape';
    },

    /**
     * Attempts to destroy any objects passed to it by removing all event listeners, removing them from the
     * DOM (if applicable) and calling their destroy functions (if available).  This method is primarily
     * intended for arguments of type {@link Ext.Element} and {@link Ext.Component}, but any subclass of
     * {@link Ext.util.Observable} can be passed in.  Any number of elements and/or components can be
     * passed into this function in a single call as separate arguments.
     *
     * @param {Ext.Element/Ext.Component/Ext.Element[]/Ext.Component[]...} args
     * An {@link Ext.Element}, {@link Ext.Component}, or an Array of either of these to destroy
     */
    destroy: function() {
        var ln = arguments.length,
        i, arg;

        for (i = 0; i < ln; i++) {
            arg = arguments[i];
            if (arg) {
                if (Ext.isArray(arg)) {
                    this.destroy.apply(this, arg);
                }
                else if (Ext.isFunction(arg.destroy)) {
                    arg.destroy();
                }
                else if (arg.dom) {
                    arg.remove();
                }
            }
        }
    },

    /**
     * Execute a callback function in a particular scope. If no function is passed the call is ignored.
     *
     * For example, these lines are equivalent:
     *
     *     Ext.callback(myFunc, this, [arg1, arg2]);
     *     Ext.isFunction(myFunc) && myFunc.apply(this, [arg1, arg2]);
     *
     * @param {Function} callback The callback to execute
     * @param {Object} [scope] The scope to execute in
     * @param {Array} [args] The arguments to pass to the function
     * @param {Number} [delay] Pass a number to delay the call by a number of milliseconds.
     */
    callback: function(callback, scope, args, delay){
        if(Ext.isFunction(callback)){
            args = args || [];
            scope = scope || window;
            if (delay) {
                Ext.defer(callback, delay, scope, args);
            } else {
                callback.apply(scope, args);
            }
        }
    },

    /**
     * Alias for {@link Ext.String#htmlEncode}.
     * @inheritdoc Ext.String#htmlEncode
     * @ignore
     */
    htmlEncode : function(value) {
        return Ext.String.htmlEncode(value);
    },

    /**
     * Alias for {@link Ext.String#htmlDecode}.
     * @inheritdoc Ext.String#htmlDecode
     * @ignore
     */
    htmlDecode : function(value) {
         return Ext.String.htmlDecode(value);
    },

    /**
     * Alias for {@link Ext.String#urlAppend}.
     * @inheritdoc Ext.String#urlAppend
     * @ignore
     */
    urlAppend : function(url, s) {
        return Ext.String.urlAppend(url, s);
    }
});


Ext.ns = Ext.namespace;

// for old browsers
window.undefined = window.undefined;

/**
 * @class Ext
 */
(function(){
/*
FF 3.6      - Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.17) Gecko/20110420 Firefox/3.6.17
FF 4.0.1    - Mozilla/5.0 (Windows NT 5.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1
FF 5.0      - Mozilla/5.0 (Windows NT 6.1; WOW64; rv:5.0) Gecko/20100101 Firefox/5.0

IE6         - Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1;)
IE7         - Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1;)
IE8         - Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0)
IE9         - Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)

Chrome 11   - Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/534.24 (KHTML, like Gecko) Chrome/11.0.696.60 Safari/534.24

Safari 5    - Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/533.21.1 (KHTML, like Gecko) Version/5.0.5 Safari/533.21.1

Opera 11.11 - Opera/9.80 (Windows NT 6.1; U; en) Presto/2.8.131 Version/11.11
*/
    var check = function(regex){
            return regex.test(Ext.userAgent);
        },
        isStrict = document.compatMode == "CSS1Compat",
        version = function (is, regex) {
            var m;
            return (is && (m = regex.exec(Ext.userAgent))) ? parseFloat(m[1]) : 0;
        },
        docMode = document.documentMode,
        isOpera = check(/opera/),
        isOpera10_5 = isOpera && check(/version\/10\.5/),
        isChrome = check(/\bchrome\b/),
        isWebKit = check(/webkit/),
        isSafari = !isChrome && check(/safari/),
        isSafari2 = isSafari && check(/applewebkit\/4/), // unique to Safari 2
        isSafari3 = isSafari && check(/version\/3/),
        isSafari4 = isSafari && check(/version\/4/),
        isSafari5_0 = isSafari && check(/version\/5\.0/),
        isSafari5 = isSafari && check(/version\/5/),
        isIE = !isOpera && check(/msie/),
        isIE7 = isIE && ((check(/msie 7/) && docMode != 8 && docMode != 9) || docMode == 7),
        isIE8 = isIE && ((check(/msie 8/) && docMode != 7 && docMode != 9) || docMode == 8),
        isIE9 = isIE && ((check(/msie 9/) && docMode != 7 && docMode != 8) || docMode == 9),
        isIE6 = isIE && check(/msie 6/),
        isGecko = !isWebKit && check(/gecko/),
        isGecko3 = isGecko && check(/rv:1\.9/),
        isGecko4 = isGecko && check(/rv:2\.0/),
        isGecko5 = isGecko && check(/rv:5\./),
        isGecko10 = isGecko && check(/rv:10\./),
        isFF3_0 = isGecko3 && check(/rv:1\.9\.0/),
        isFF3_5 = isGecko3 && check(/rv:1\.9\.1/),
        isFF3_6 = isGecko3 && check(/rv:1\.9\.2/),
        isWindows = check(/windows|win32/),
        isMac = check(/macintosh|mac os x/),
        isLinux = check(/linux/),
        scrollbarSize = null,
        chromeVersion = version(true, /\bchrome\/(\d+\.\d+)/),
        firefoxVersion = version(true, /\bfirefox\/(\d+\.\d+)/),
        ieVersion = version(isIE, /msie (\d+\.\d+)/),
        operaVersion = version(isOpera, /version\/(\d+\.\d+)/),
        safariVersion = version(isSafari, /version\/(\d+\.\d+)/),
        webKitVersion = version(isWebKit, /webkit\/(\d+\.\d+)/),
        isSecure = /^https/i.test(window.location.protocol),
        nullLog;

    // remove css image flicker
    try {
        document.execCommand("BackgroundImageCache", false, true);
    } catch(e) {}


    //<debug>
    var primitiveRe = /string|number|boolean/;
    function dumpObject (object) {
        var member, type, value, name,
            members = [];

        // Cannot use Ext.encode since it can recurse endlessly (if we're lucky)
        // ...and the data could be prettier!
        for (name in object) {
            if (object.hasOwnProperty(name)) {
                value = object[name];

                type = typeof value;
                if (type == "function") {
                    continue;
                }

                if (type == 'undefined') {
                    member = type;
                } else if (value === null || primitiveRe.test(type) || Ext.isDate(value)) {
                    member = Ext.encode(value);
                } else if (Ext.isArray(value)) {
                    member = '[ ]';
                } else if (Ext.isObject(value)) {
                    member = '{ }';
                } else {
                    member = type;
                }
                members.push(Ext.encode(name) + ': ' + member);
            }
        }

        if (members.length) {
            return ' \nData: {\n  ' + members.join(',\n  ') + '\n}';
        }
        return '';
    }

    function log (message) {
        var options, dump,
            con = Ext.global.console,
            level = 'log',
            indent = log.indent || 0,
            stack,
            out,
            max;

        log.indent = indent;

        if (typeof message != 'string') {
            options = message;
            message = options.msg || '';
            level = options.level || level;
            dump = options.dump;
            stack = options.stack;

            if (options.indent) {
                ++log.indent;
            } else if (options.outdent) {
                log.indent = indent = Math.max(indent - 1, 0);
            }

            if (dump && !(con && con.dir)) {
                message += dumpObject(dump);
                dump = null;
            }
        }

        if (arguments.length > 1) {
            message += Array.prototype.slice.call(arguments, 1).join('');
        }

        message = indent ? Ext.String.repeat(' ', log.indentSize * indent) + message : message;
        // w/o console, all messages are equal, so munge the level into the message:
        if (level != 'log') {
            message = '[' + level.charAt(0).toUpperCase() + '] ' + message;
        }

        // Not obvious, but 'console' comes and goes when Firebug is turned on/off, so
        // an early test may fail either direction if Firebug is toggled.
        //
        if (con) { // if (Firebug-like console)
            if (con[level]) {
                con[level](message);
            } else {
                con.log(message);
            }

            if (dump) {
                con.dir(dump);
            }

            if (stack && con.trace) {
                // Firebug's console.error() includes a trace already...
                if (!con.firebug || level != 'error') {
                    con.trace();
                }
            }
        } else {
            if (Ext.isOpera) {
                opera.postError(message);
            } else {
                out = log.out;
                max = log.max;

                if (out.length >= max) {
                    // this formula allows out.max to change (via debugger), where the
                    // more obvious "max/4" would not quite be the same
                    Ext.Array.erase(out, 0, out.length - 3 * Math.floor(max / 4)); // keep newest 75%
                }

                out.push(message);
            }
        }

        // Mostly informational, but the Ext.Error notifier uses them:
        ++log.count;
        ++log.counters[level];
    }

    function logx (level, args) {
        if (typeof args[0] == 'string') {
            args.unshift({});
        }
        args[0].level = level;
        log.apply(this, args);
    }

    log.error = function () {
        logx('error', Array.prototype.slice.call(arguments));
    };
    log.info = function () {
        logx('info', Array.prototype.slice.call(arguments));
    };
    log.warn = function () {
        logx('warn', Array.prototype.slice.call(arguments));
    };

    log.count = 0;
    log.counters = { error: 0, warn: 0, info: 0, log: 0 };
    log.indentSize = 2;
    log.out = [];
    log.max = 750;
    log.show = function () {
        window.open('','extlog').document.write([
            '<html><head><script type="text/javascript">',
                'var lastCount = 0;',
                'function update () {',
                    'var ext = window.opener.Ext,',
                        'extlog = ext && ext.log;',
                    'if (extlog && extlog.out && lastCount != extlog.count) {',
                        'lastCount = extlog.count;',
                        'var s = "<tt>" + extlog.out.join("~~~").replace(/[&]/g, "&amp;").replace(/[<]/g, "&lt;").replace(/[ ]/g, "&#160;").replace(/\\~\\~\\~/g, "<br/>") + "</tt>";',
                        'document.body.innerHTML = s;',
                    '}',
                    'setTimeout(update, 1000);',
                '}',
                'setTimeout(update, 1000);',
            '</script></head><body></body></html>'].join(''));
    };
    //</debug>

    nullLog = function () {};
    nullLog.info = nullLog.warn = nullLog.error = Ext.emptyFn;

    Ext.setVersion('extjs', '4.1.1');
    Ext.apply(Ext, {
        /**
         * @property {String} SSL_SECURE_URL
         * URL to a blank file used by Ext when in secure mode for iframe src and onReady src
         * to prevent the IE insecure content warning (`'about:blank'`, except for IE
         * in secure mode, which is `'javascript:""'`).
         */
        SSL_SECURE_URL : isSecure && isIE ? 'javascript:\'\'' : 'about:blank',

        /**
         * @property {Boolean} enableFx
         * True if the {@link Ext.fx.Anim} Class is available.
         */

        /**
         * @property {Boolean} scopeResetCSS
         * True to scope the reset CSS to be just applied to Ext components. Note that this
         * wraps root containers with an additional element. Also remember that when you turn
         * on this option, you have to use ext-all-scoped (unless you use the bootstrap.js to
         * load your javascript, in which case it will be handled for you).
         */
        scopeResetCSS : Ext.buildSettings.scopeResetCSS,
        
        /**
         * @property {String} resetCls
         * The css class used to wrap Ext components when the {@link #scopeResetCSS} option
         * is used.
         */
        resetCls: Ext.buildSettings.baseCSSPrefix + 'reset',

        /**
         * @property {Boolean} enableNestedListenerRemoval
         * **Experimental.** True to cascade listener removal to child elements when an element
         * is removed. Currently not optimized for performance.
         */
        enableNestedListenerRemoval : false,

        /**
         * @property {Boolean} USE_NATIVE_JSON
         * Indicates whether to use native browser parsing for JSON methods.
         * This option is ignored if the browser does not support native JSON methods.
         *
         * **Note:** Native JSON methods will not work with objects that have functions.
         * Also, property names must be quoted, otherwise the data will not parse.
         */
        USE_NATIVE_JSON : false,

        /**
         * Returns the dom node for the passed String (id), dom node, or Ext.Element.
         * Optional 'strict' flag is needed for IE since it can return 'name' and
         * 'id' elements by using getElementById.
         *
         * Here are some examples:
         *
         *     // gets dom node based on id
         *     var elDom = Ext.getDom('elId');
         *     // gets dom node based on the dom node
         *     var elDom1 = Ext.getDom(elDom);
         *
         *     // If we don&#39;t know if we are working with an
         *     // Ext.Element or a dom node use Ext.getDom
         *     function(el){
         *         var dom = Ext.getDom(el);
         *         // do something with the dom node
         *     }
         *
         * **Note:** the dom node to be found actually needs to exist (be rendered, etc)
         * when this method is called to be successful.
         *
         * @param {String/HTMLElement/Ext.Element} el
         * @return HTMLElement
         */
        getDom : function(el, strict) {
            if (!el || !document) {
                return null;
            }
            if (el.dom) {
                return el.dom;
            } else {
                if (typeof el == 'string') {
                    var e = Ext.getElementById(el);
                    // IE returns elements with the 'name' and 'id' attribute.
                    // we do a strict check to return the element with only the id attribute
                    if (e && isIE && strict) {
                        if (el == e.getAttribute('id')) {
                            return e;
                        } else {
                            return null;
                        }
                    }
                    return e;
                } else {
                    return el;
                }
            }
        },

        /**
         * Removes a DOM node from the document.
         *
         * Removes this element from the document, removes all DOM event listeners, and
         * deletes the cache reference. All DOM event listeners are removed from this element.
         * If {@link Ext#enableNestedListenerRemoval Ext.enableNestedListenerRemoval} is
         * `true`, then DOM event listeners are also removed from all child nodes.
         * The body node will be ignored if passed in.
         *
         * @param {HTMLElement} node The node to remove
         * @method
         */
        removeNode : isIE6 || isIE7 || isIE8
            ? (function() {
                var d;
                return function(n){
                    if(n && n.tagName.toUpperCase() != 'BODY'){
                        (Ext.enableNestedListenerRemoval) ? Ext.EventManager.purgeElement(n) : Ext.EventManager.removeAll(n);

                        var cache = Ext.cache,
                            id = n.id;

                        if (cache[id]) {
                            delete cache[id].dom;
                            delete cache[id];
                        }

                        if (isIE8 && n.parentNode) {
                            n.parentNode.removeChild(n);
                        }
                        d = d || document.createElement('div');
                        d.appendChild(n);
                        d.innerHTML = '';
                    }
                };
            }())
            : function(n) {
                if (n && n.parentNode && n.tagName.toUpperCase() != 'BODY') {
                    (Ext.enableNestedListenerRemoval) ? Ext.EventManager.purgeElement(n) : Ext.EventManager.removeAll(n);

                    var cache = Ext.cache,
                        id = n.id;

                    if (cache[id]) {
                        delete cache[id].dom;
                        delete cache[id];
                    }

                    n.parentNode.removeChild(n);
                }
            },

        isStrict: isStrict,

        isIEQuirks: isIE && !isStrict,

        /**
         * True if the detected browser is Opera.
         * @type Boolean
         */
        isOpera : isOpera,

        /**
         * True if the detected browser is Opera 10.5x.
         * @type Boolean
         */
        isOpera10_5 : isOpera10_5,

        /**
         * True if the detected browser uses WebKit.
         * @type Boolean
         */
        isWebKit : isWebKit,

        /**
         * True if the detected browser is Chrome.
         * @type Boolean
         */
        isChrome : isChrome,

        /**
         * True if the detected browser is Safari.
         * @type Boolean
         */
        isSafari : isSafari,

        /**
         * True if the detected browser is Safari 3.x.
         * @type Boolean
         */
        isSafari3 : isSafari3,

        /**
         * True if the detected browser is Safari 4.x.
         * @type Boolean
         */
        isSafari4 : isSafari4,

        /**
         * True if the detected browser is Safari 5.x.
         * @type Boolean
         */
        isSafari5 : isSafari5,

        /**
         * True if the detected browser is Safari 5.0.x.
         * @type Boolean
         */
        isSafari5_0 : isSafari5_0,


        /**
         * True if the detected browser is Safari 2.x.
         * @type Boolean
         */
        isSafari2 : isSafari2,

        /**
         * True if the detected browser is Internet Explorer.
         * @type Boolean
         */
        isIE : isIE,

        /**
         * True if the detected browser is Internet Explorer 6.x.
         * @type Boolean
         */
        isIE6 : isIE6,

        /**
         * True if the detected browser is Internet Explorer 7.x.
         * @type Boolean
         */
        isIE7 : isIE7,

        /**
         * True if the detected browser is Internet Explorer 8.x.
         * @type Boolean
         */
        isIE8 : isIE8,

        /**
         * True if the detected browser is Internet Explorer 9.x.
         * @type Boolean
         */
        isIE9 : isIE9,

        /**
         * True if the detected browser uses the Gecko layout engine (e.g. Mozilla, Firefox).
         * @type Boolean
         */
        isGecko : isGecko,

        /**
         * True if the detected browser uses a Gecko 1.9+ layout engine (e.g. Firefox 3.x).
         * @type Boolean
         */
        isGecko3 : isGecko3,

        /**
         * True if the detected browser uses a Gecko 2.0+ layout engine (e.g. Firefox 4.x).
         * @type Boolean
         */
        isGecko4 : isGecko4,

        /**
         * True if the detected browser uses a Gecko 5.0+ layout engine (e.g. Firefox 5.x).
         * @type Boolean
         */
        isGecko5 : isGecko5,

        /**
         * True if the detected browser uses a Gecko 5.0+ layout engine (e.g. Firefox 5.x).
         * @type Boolean
         */
        isGecko10 : isGecko10,

        /**
         * True if the detected browser uses FireFox 3.0
         * @type Boolean
         */
        isFF3_0 : isFF3_0,

        /**
         * True if the detected browser uses FireFox 3.5
         * @type Boolean
         */
        isFF3_5 : isFF3_5,

        /**
         * True if the detected browser uses FireFox 3.6
         * @type Boolean
         */
        isFF3_6 : isFF3_6,

        /**
         * True if the detected browser uses FireFox 4
         * @type Boolean
         */
        isFF4 : 4 <= firefoxVersion && firefoxVersion < 5,

        /**
         * True if the detected browser uses FireFox 5
         * @type Boolean
         */
        isFF5 : 5 <= firefoxVersion && firefoxVersion < 6,

        /**
         * True if the detected browser uses FireFox 10
         * @type Boolean
         */
        isFF10 : 10 <= firefoxVersion && firefoxVersion < 11,

        /**
         * True if the detected platform is Linux.
         * @type Boolean
         */
        isLinux : isLinux,

        /**
         * True if the detected platform is Windows.
         * @type Boolean
         */
        isWindows : isWindows,

        /**
         * True if the detected platform is Mac OS.
         * @type Boolean
         */
        isMac : isMac,

        /**
         * The current version of Chrome (0 if the browser is not Chrome).
         * @type Number
         */
        chromeVersion: chromeVersion,

        /**
         * The current version of Firefox (0 if the browser is not Firefox).
         * @type Number
         */
        firefoxVersion: firefoxVersion,

        /**
         * The current version of IE (0 if the browser is not IE). This does not account
         * for the documentMode of the current page, which is factored into {@link #isIE7},
         * {@link #isIE8} and {@link #isIE9}. Thus this is not always true:
         *
         *     Ext.isIE8 == (Ext.ieVersion == 8)
         *
         * @type Number
         */
        ieVersion: ieVersion,

        /**
         * The current version of Opera (0 if the browser is not Opera).
         * @type Number
         */
        operaVersion: operaVersion,

        /**
         * The current version of Safari (0 if the browser is not Safari).
         * @type Number
         */
        safariVersion: safariVersion,

        /**
         * The current version of WebKit (0 if the browser does not use WebKit).
         * @type Number
         */
        webKitVersion: webKitVersion,

        /**
         * True if the page is running over SSL
         * @type Boolean
         */
        isSecure: isSecure,
        
        /**
         * URL to a 1x1 transparent gif image used by Ext to create inline icons with
         * CSS background images. In older versions of IE, this defaults to
         * "http://sencha.com/s.gif" and you should change this to a URL on your server.
         * For other browsers it uses an inline data URL.
         * @type String
         */
        BLANK_IMAGE_URL : (isIE6 || isIE7) ? '/' + '/www.sencha.com/s.gif' : 'data:image/gif;base64,R0lGODlhAQABAID/AMDAwAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==',

        /**
         * Utility method for returning a default value if the passed value is empty.
         *
         * The value is deemed to be empty if it is:
         *
         * - null
         * - undefined
         * - an empty array
         * - a zero length string (Unless the `allowBlank` parameter is `true`)
         *
         * @param {Object} value The value to test
         * @param {Object} defaultValue The value to return if the original value is empty
         * @param {Boolean} [allowBlank=false] true to allow zero length strings to qualify as non-empty.
         * @return {Object} value, if non-empty, else defaultValue
         * @deprecated 4.0.0 Use {@link Ext#valueFrom} instead
         */
        value : function(v, defaultValue, allowBlank){
            return Ext.isEmpty(v, allowBlank) ? defaultValue : v;
        },

        /**
         * Escapes the passed string for use in a regular expression.
         * @param {String} str
         * @return {String}
         * @deprecated 4.0.0 Use {@link Ext.String#escapeRegex} instead
         */
        escapeRe : function(s) {
            return s.replace(/([-.*+?\^${}()|\[\]\/\\])/g, "\\$1");
        },

        /**
         * Applies event listeners to elements by selectors when the document is ready.
         * The event name is specified with an `@` suffix.
         *
         *     Ext.addBehaviors({
         *         // add a listener for click on all anchors in element with id foo
         *         '#foo a@click' : function(e, t){
         *             // do something
         *         },
         *
         *         // add the same listener to multiple selectors (separated by comma BEFORE the @)
         *         '#foo a, #bar span.some-class@mouseover' : function(){
         *             // do something
         *         }
         *     });
         *
         * @param {Object} obj The list of behaviors to apply
         */
        addBehaviors : function(o){
            if(!Ext.isReady){
                Ext.onReady(function(){
                    Ext.addBehaviors(o);
                });
            } else {
                var cache = {}, // simple cache for applying multiple behaviors to same selector does query multiple times
                    parts,
                    b,
                    s;
                for (b in o) {
                    if ((parts = b.split('@'))[1]) { // for Object prototype breakers
                        s = parts[0];
                        if(!cache[s]){
                            cache[s] = Ext.select(s);
                        }
                        cache[s].on(parts[1], o[b]);
                    }
                }
                cache = null;
            }
        },

        /**
         * Returns the size of the browser scrollbars. This can differ depending on
         * operating system settings, such as the theme or font size.
         * @param {Boolean} [force] true to force a recalculation of the value.
         * @return {Object} An object containing scrollbar sizes.
         * @return.width {Number} The width of the vertical scrollbar.
         * @return.height {Number} The height of the horizontal scrollbar.
         */
        getScrollbarSize: function (force) {
            if (!Ext.isReady) {
                return {};
            }

            if (force || !scrollbarSize) {
                var db = document.body,
                    div = document.createElement('div');

                div.style.width = div.style.height = '100px';
                div.style.overflow = 'scroll';
                div.style.position = 'absolute';

                db.appendChild(div); // now we can measure the div...

                // at least in iE9 the div is not 100px - the scrollbar size is removed!
                scrollbarSize = {
                    width: div.offsetWidth - div.clientWidth,
                    height: div.offsetHeight - div.clientHeight
                };

                db.removeChild(div);
            }

            return scrollbarSize;
        },

        /**
         * Utility method for getting the width of the browser's vertical scrollbar. This
         * can differ depending on operating system settings, such as the theme or font size.
         *
         * This method is deprected in favor of {@link #getScrollbarSize}.
         *
         * @param {Boolean} [force] true to force a recalculation of the value.
         * @return {Number} The width of a vertical scrollbar.
         * @deprecated
         */
        getScrollBarWidth: function(force){
            var size = Ext.getScrollbarSize(force);
            return size.width + 2; // legacy fudge factor
        },

        /**
         * Copies a set of named properties fom the source object to the destination object.
         *
         * Example:
         *
         *     ImageComponent = Ext.extend(Ext.Component, {
         *         initComponent: function() {
         *             this.autoEl = { tag: 'img' };
         *             MyComponent.superclass.initComponent.apply(this, arguments);
         *             this.initialBox = Ext.copyTo({}, this.initialConfig, 'x,y,width,height');
         *         }
         *     });
         *
         * Important note: To borrow class prototype methods, use {@link Ext.Base#borrow} instead.
         *
         * @param {Object} dest The destination object.
         * @param {Object} source The source object.
         * @param {String/String[]} names Either an Array of property names, or a comma-delimited list
         * of property names to copy.
         * @param {Boolean} [usePrototypeKeys] Defaults to false. Pass true to copy keys off of the
         * prototype as well as the instance.
         * @return {Object} The modified object.
         */
        copyTo : function(dest, source, names, usePrototypeKeys){
            if(typeof names == 'string'){
                names = names.split(/[,;\s]/);
            }

            var n,
                nLen = names.length,
                name;

            for(n = 0; n < nLen; n++) {
                name = names[n];

                if(usePrototypeKeys || source.hasOwnProperty(name)){
                    dest[name] = source[name];
                }
            }

            return dest;
        },

        /**
         * Attempts to destroy and then remove a set of named properties of the passed object.
         * @param {Object} o The object (most likely a Component) who's properties you wish to destroy.
         * @param {String...} args One or more names of the properties to destroy and remove from the object.
         */
        destroyMembers : function(o){
            for (var i = 1, a = arguments, len = a.length; i < len; i++) {
                Ext.destroy(o[a[i]]);
                delete o[a[i]];
            }
        },

        /**
         * Logs a message. If a console is present it will be used. On Opera, the method
         * "opera.postError" is called. In other cases, the message is logged to an array
         * "Ext.log.out". An attached debugger can watch this array and view the log. The
         * log buffer is limited to a maximum of "Ext.log.max" entries (defaults to 250).
         * The `Ext.log.out` array can also be written to a popup window by entering the
         * following in the URL bar (a "bookmarklet"):
         *
         *     javascript:void(Ext.log.show());
         *
         * If additional parameters are passed, they are joined and appended to the message.
         * A technique for tracing entry and exit of a function is this:
         *
         *     function foo () {
         *         Ext.log({ indent: 1 }, '>> foo');
         *
         *         // log statements in here or methods called from here will be indented
         *         // by one step
         *
         *         Ext.log({ outdent: 1 }, '<< foo');
         *     }
         *
         * This method does nothing in a release build.
         *
         * @param {String/Object} [options] The message to log or an options object with any
         * of the following properties:
         *
         *  - `msg`: The message to log (required).
         *  - `level`: One of: "error", "warn", "info" or "log" (the default is "log").
         *  - `dump`: An object to dump to the log as part of the message.
         *  - `stack`: True to include a stack trace in the log.
         *  - `indent`: Cause subsequent log statements to be indented one step.
         *  - `outdent`: Cause this and following statements to be one step less indented.
         *
         * @param {String...} [message] The message to log (required unless specified in
         * options object).
         *
         * @method
         */
        log :
            //<debug>
            log ||
            //</debug>
            nullLog,

        /**
         * Partitions the set into two sets: a true set and a false set.
         *
         * Example 1:
         *
         *     Ext.partition([true, false, true, true, false]);
         *     // returns [[true, true, true], [false, false]]
         *
         * Example 2:
         *
         *     Ext.partition(
         *         Ext.query("p"),
         *         function(val){
         *             return val.className == "class1"
         *         }
         *     );
         *     // true are those paragraph elements with a className of "class1",
         *     // false set are those that do not have that className.
         *
         * @param {Array/NodeList} arr The array to partition
         * @param {Function} truth (optional) a function to determine truth.
         * If this is omitted the element itself must be able to be evaluated for its truthfulness.
         * @return {Array} [array of truish values, array of falsy values]
         * @deprecated 4.0.0 Will be removed in the next major version
         */
        partition : function(arr, truth){
            var ret = [[],[]],
                a, v,
                aLen = arr.length;

            for (a = 0; a < aLen; a++) {
                v = arr[a];
                ret[ (truth && truth(v, a, arr)) || (!truth && v) ? 0 : 1].push(v);
            }

            return ret;
        },

        /**
         * Invokes a method on each item in an Array.
         *
         * Example:
         *
         *     Ext.invoke(Ext.query("p"), "getAttribute", "id");
         *     // [el1.getAttribute("id"), el2.getAttribute("id"), ..., elN.getAttribute("id")]
         *
         * @param {Array/NodeList} arr The Array of items to invoke the method on.
         * @param {String} methodName The method name to invoke.
         * @param {Object...} args Arguments to send into the method invocation.
         * @return {Array} The results of invoking the method on each item in the array.
         * @deprecated 4.0.0 Will be removed in the next major version
         */
        invoke : function(arr, methodName){
            var ret  = [],
                args = Array.prototype.slice.call(arguments, 2),
                a, v,
                aLen = arr.length;

            for (a = 0; a < aLen; a++) {
                v = arr[a];

                if (v && typeof v[methodName] == 'function') {
                    ret.push(v[methodName].apply(v, args));
                } else {
                    ret.push(undefined);
                }
            }

            return ret;
        },

        /**
         * Zips N sets together.
         *
         * Example 1:
         *
         *     Ext.zip([1,2,3],[4,5,6]); // [[1,4],[2,5],[3,6]]
         *
         * Example 2:
         *
         *     Ext.zip(
         *         [ "+", "-", "+"],
         *         [  12,  10,  22],
         *         [  43,  15,  96],
         *         function(a, b, c){
         *             return "$" + a + "" + b + "." + c
         *         }
         *     ); // ["$+12.43", "$-10.15", "$+22.96"]
         *
         * @param {Array/NodeList...} arr This argument may be repeated. Array(s)
         * to contribute values.
         * @param {Function} zipper (optional) The last item in the argument list.
         * This will drive how the items are zipped together.
         * @return {Array} The zipped set.
         * @deprecated 4.0.0 Will be removed in the next major version
         */
        zip : function(){
            var parts = Ext.partition(arguments, function( val ){ return typeof val != 'function'; }),
                arrs = parts[0],
                fn = parts[1][0],
                len = Ext.max(Ext.pluck(arrs, "length")),
                ret = [],
                i,
                j,
                aLen;

            for (i = 0; i < len; i++) {
                ret[i] = [];
                if(fn){
                    ret[i] = fn.apply(fn, Ext.pluck(arrs, i));
                }else{
                    for (j = 0, aLen = arrs.length; j < aLen; j++){
                        ret[i].push( arrs[j][i] );
                    }
                }
            }
            return ret;
        },

        /**
         * Turns an array into a sentence, joined by a specified connector - e.g.:
         *
         *     Ext.toSentence(['Adama', 'Tigh', 'Roslin']); //'Adama, Tigh and Roslin'
         *     Ext.toSentence(['Adama', 'Tigh', 'Roslin'], 'or'); //'Adama, Tigh or Roslin'
         *
         * @param {String[]} items The array to create a sentence from
         * @param {String} connector The string to use to connect the last two words.
         * Usually 'and' or 'or' - defaults to 'and'.
         * @return {String} The sentence string
         * @deprecated 4.0.0 Will be removed in the next major version
         */
        toSentence: function(items, connector) {
            var length = items.length,
                head,
                tail;

            if (length <= 1) {
                return items[0];
            } else {
                head = items.slice(0, length - 1);
                tail = items[length - 1];

                return Ext.util.Format.format("{0} {1} {2}", head.join(", "), connector || 'and', tail);
            }
        },

        /**
         * @property {Boolean} useShims
         * By default, Ext intelligently decides whether floating elements should be shimmed.
         * If you are using flash, you may want to set this to true.
         */
        useShims: isIE6
    });
}());

/**
 * Loads Ext.app.Application class and starts it up with given configuration after the page is ready.
 *
 * See Ext.app.Application for details.
 *
 * @param {Object} config
 */
Ext.application = function(config) {
    Ext.require('Ext.app.Application');

    Ext.onReady(function() {
        new Ext.app.Application(config);
    });
};
