    /**
     * @class Ext.core.Element
     */

    Ext.core.Element.addMethods({

        /**
         * Monitors this Element for the mouse leaving. Calls the function after the specified delay only if
         * the mouse was not moved back into the Element within the delay. If the mouse <i>was</i> moved
         * back in, the function is not called.
         * @param {Number} delay The delay <b>in milliseconds</b> to wait for possible mouse re-entry before calling the handler function.
         * @param {Function} handler The function to call if the mouse remains outside of this Element for the specified time.
         * @param {Object} scope The scope (<code>this</code> reference) in which the handler function executes. Defaults to this Element.
         * @return {Object} The listeners object which was added to this element so that monitoring can be stopped. Example usage:</pre><code>
    // Hide the menu if the mouse moves out for 250ms or more
    this.mouseLeaveMonitor = this.menuEl.monitorMouseLeave(250, this.hideMenu, this);

    ...
    // Remove mouseleave monitor on menu destroy
    this.menuEl.un(this.mouseLeaveMonitor);
    </code></pre>
         */
        monitorMouseLeave: function(delay, handler, scope) {
            var me = this,
                timer,
                listeners = {
                    mouseleave: function(e) {
                        timer = setTimeout(Ext.Function.bind(handler, scope||me, [e]), delay);
                    },
                    mouseenter: function() {
                        clearTimeout(timer);
                    },
                    freezeEvent: true
                };

            me.on(listeners);
            return listeners;
        },

        /**
         * Stops the specified event(s) from bubbling and optionally prevents the default action
         * @param {String/Array} eventName an event / array of events to stop from bubbling
         * @param {Boolean} preventDefault (optional) true to prevent the default action too
         * @return {Ext.core.Element} this
         */
        swallowEvent : function(eventName, preventDefault) {
            var me = this;
            function fn(e) {
                e.stopPropagation();
                if (preventDefault) {
                    e.preventDefault();
                }
            }

            if (Ext.isArray(eventName)) {
                Ext.each(eventName, function(e) {
                     me.on(e, fn);
                });
                return me;
            }
            me.on(eventName, fn);
            return me;
        },

        /**
         * Create an event handler on this element such that when the event fires and is handled by this element,
         * it will be relayed to another object (i.e., fired again as if it originated from that object instead).
         * @param {String} eventName The type of event to relay
         * @param {Object} object Any object that extends {@link Ext.util.Observable} that will provide the context
         * for firing the relayed event
         */
        relayEvent : function(eventName, observable) {
            this.on(eventName, function(e) {
                observable.fireEvent(eventName, e);
            });
        },

        /**
         * Removes Empty, or whitespace filled text nodes. Combines adjacent text nodes.
         * @param {Boolean} forceReclean (optional) By default the element
         * keeps track if it has been cleaned already so
         * you can call this over and over. However, if you update the element and
         * need to force a reclean, you can pass true.
         */
        clean : function(forceReclean) {
            var me  = this,
                dom = me.dom,
                n   = dom.firstChild,
                nx,
                ni  = -1;

            if (Ext.core.Element.data(dom, 'isCleaned') && forceReclean !== true) {
                return me;
            }

            while (n) {
                nx = n.nextSibling;
                if (n.nodeType == 3) {
                    // Remove empty/whitespace text nodes
                    if (!(/\S/.test(n.nodeValue))) {
                        dom.removeChild(n);
                    // Combine adjacent text nodes
                    } else if (nx && nx.nodeType == 3) {
                        n.appendData(Ext.String.trim(nx.data));
                        dom.removeChild(nx);
                        nx = n.nextSibling;
                        n.nodeIndex = ++ni;
                    }
                } else {
                    // Recursively clean
                    Ext.fly(n).clean();
                    n.nodeIndex = ++ni;
                }
                n = nx;
            }

            Ext.core.Element.data(dom, 'isCleaned', true);
            return me;
        },

        /**
         * Direct access to the Ext.ElementLoader {@link Ext.ElementLoader#load} method. The method takes the same object
         * parameter as {@link Ext.ElementLoader#load}
         * @return {Ext.core.Element} this
         */
        load : function(options) {
            this.getLoader().load(options);
            return this;
        },

        /**
        * Gets this element's {@link Ext.ElementLoader ElementLoader}
        * @return {Ext.ElementLoader} The loader
        */
        getLoader : function() {
            var dom = this.dom,
                data = Ext.core.Element.data,
                loader = data(dom, 'loader');

            if (!loader) {
                loader = Ext.create('Ext.ElementLoader', {
                    target: this
                });
                data(dom, 'loader', loader);
            }
            return loader;
        },

        /**
        * Update the innerHTML of this element, optionally searching for and processing scripts
        * @param {String} html The new HTML
        * @param {Boolean} loadScripts (optional) True to look for and process scripts (defaults to false)
        * @param {Function} callback (optional) For async script loading you can be notified when the update completes
        * @return {Ext.core.Element} this
         */
        update : function(html, loadScripts, callback) {
            var me = this,
                id,
                dom,
                interval;

            if (!me.dom) {
                return me;
            }
            html = html || '';
            dom = me.dom;

            if (loadScripts !== true) {
                dom.innerHTML = html;
                Ext.callback(callback, me);
                return me;
            }

            id  = Ext.id();
            html += '<span id="' + id + '"></span>';

            interval = setInterval(function(){
                if (!document.getElementById(id)) {
                    return false;
                }
                clearInterval(interval);
                var DOC    = document,
                    hd     = DOC.getElementsByTagName("head")[0],
                    re     = /(?:<script([^>]*)?>)((\n|\r|.)*?)(?:<\/script>)/ig,
                    srcRe  = /\ssrc=([\'\"])(.*?)\1/i,
                    typeRe = /\stype=([\'\"])(.*?)\1/i,
                    match,
                    attrs,
                    srcMatch,
                    typeMatch,
                    el,
                    s;

                while ((match = re.exec(html))) {
                    attrs = match[1];
                    srcMatch = attrs ? attrs.match(srcRe) : false;
                    if (srcMatch && srcMatch[2]) {
                       s = DOC.createElement("script");
                       s.src = srcMatch[2];
                       typeMatch = attrs.match(typeRe);
                       if (typeMatch && typeMatch[2]) {
                           s.type = typeMatch[2];
                       }
                       hd.appendChild(s);
                    } else if (match[2] && match[2].length > 0) {
                        if (window.execScript) {
                           window.execScript(match[2]);
                        } else {
                           window.eval(match[2]);
                        }
                    }
                }

                el = DOC.getElementById(id);
                if (el) {
                    Ext.removeNode(el);
                }
                Ext.callback(callback, me);
            }, 20);
            dom.innerHTML = html.replace(/(?:<script.*?>)((\n|\r|.)*?)(?:<\/script>)/ig, '');
            return me;
        },

        // inherit docs, overridden so we can add removeAnchor
        removeAllListeners : function() {
            this.removeAnchor();
            Ext.EventManager.removeAll(this.dom);
            return this;
        },

        /**
         * Creates a proxy element of this element
         * @param {String/Object} config The class name of the proxy element or a DomHelper config object
         * @param {String/HTMLElement} renderTo (optional) The element or element id to render the proxy to (defaults to document.body)
         * @param {Boolean} matchBox (optional) True to align and size the proxy to this element now (defaults to false)
         * @return {Ext.core.Element} The new proxy element
         */
        createProxy : function(config, renderTo, matchBox) {
            config = (typeof config == 'object') ? config : {tag : "div", cls: config};

            var me = this,
                proxy = renderTo ? Ext.core.DomHelper.append(renderTo, config, true) :
                                   Ext.core.DomHelper.insertBefore(me.dom, config, true);

            proxy.setVisibilityMode(Ext.core.Element.DISPLAY);
            proxy.hide();
            if (matchBox && me.setBox && me.getBox) { // check to make sure Element.position.js is loaded
               proxy.setBox(me.getBox());
            }
            return proxy;
        }
    });
    Ext.core.Element.prototype.clearListeners = Ext.core.Element.prototype.removeAllListeners;