src/cm/media/js/lib/yui/yui_3.0.0b1/build/event/event-debug.js
changeset 0 40c8f766c9b8
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cm/media/js/lib/yui/yui_3.0.0b1/build/event/event-debug.js	Mon Nov 23 15:14:29 2009 +0100
@@ -0,0 +1,1833 @@
+/*
+Copyright (c) 2009, Yahoo! Inc. All rights reserved.
+Code licensed under the BSD License:
+http://developer.yahoo.net/yui/license.txt
+version: 3.0.0b1
+build: 1163
+*/
+/**
+ * DOM event listener abstraction layer
+ * @module event
+ */
+
+(function() {
+
+
+// Unlike most of the library, this code has to be executed as soon as it is
+// introduced into the page -- and it should only be executed one time
+// regardless of the number of instances that use it.
+
+var GLOBAL_ENV = YUI.Env, 
+
+    C = YUI.config, 
+
+    D = C.doc, 
+
+    POLL_INTERVAL = C.pollInterval || 40,
+
+    _ready = function(e) {
+        GLOBAL_ENV._ready();
+    };
+
+    if (!GLOBAL_ENV._ready) {
+
+        GLOBAL_ENV._ready = function() {
+            if (!GLOBAL_ENV.DOMReady) {
+                GLOBAL_ENV.DOMReady=true;
+
+                // Remove the DOMContentLoaded (FF/Opera/Safari)
+                if (D.removeEventListener) {
+                    D.removeEventListener("DOMContentLoaded", _ready, false);
+                }
+            }
+        };
+
+        // create custom event
+
+/*! DOMReady: based on work by: Dean Edwards/John Resig/Matthias Miller/Diego Perini */
+
+        // Internet Explorer: use the readyState of a defered script.
+        // This isolates what appears to be a safe moment to manipulate
+        // the DOM prior to when the document's readyState suggests
+        // it is safe to do so.
+        if (navigator.userAgent.match(/MSIE/)) {
+
+            GLOBAL_ENV._dri = setInterval(function() {
+                try {
+                    // throws an error if doc is not ready
+                    document.documentElement.doScroll('left');
+                    clearInterval(GLOBAL_ENV._dri);
+                    GLOBAL_ENV._dri = null;
+                    _ready();
+                } catch (ex) { 
+                }
+            }, POLL_INTERVAL); 
+
+        // FireFox, Opera, Safari 3+: These browsers provide a event for this
+        // moment.
+        } else {
+            D.addEventListener("DOMContentLoaded", _ready, false);
+        }
+
+        /////////////////////////////////////////////////////////////
+    }
+
+})();
+YUI.add('event', function(Y) {
+
+(function() {
+/**
+ * DOM event listener abstraction layer
+ * @module event
+ */
+
+var GLOBAL_ENV = YUI.Env,
+    
+    adapt = Y.Env.evt.plugins,
+
+    yready = function() {
+        Y.fire('domready');
+    };
+
+Y.mix(adapt, {
+
+    /**
+     * Executes the supplied callback when the DOM is first usable.  This
+     * will execute immediately if called after the DOMReady event has
+     * fired.   @todo the DOMContentReady event does not fire when the
+     * script is dynamically injected into the page.  This means the
+     * DOMReady custom event will never fire in FireFox or Opera when the
+     * library is injected.  It _will_ fire in Safari, and the IE 
+     * implementation would allow for us to fire it if the defered script
+     * is not available.  We want this to behave the same in all browsers.
+     * Is there a way to identify when the script has been injected 
+     * instead of included inline?  Is there a way to know whether the 
+     * window onload event has fired without having had a listener attached 
+     * to it when it did so?
+     *
+     * <p>The callback is a Event.Custom, so the signature is:</p>
+     * <p>type &lt;string&gt;, args &lt;array&gt;, customobject &lt;object&gt;</p>
+     * <p>For DOMReady events, there are no fire argments, so the
+     * signature is:</p>
+     * <p>"DOMReady", [], obj</p>
+     *
+     *
+     * @event domready
+     * @for YUI
+     *
+     * @param {function} fn what to execute when the element is found.
+     * @optional context execution context
+     * @optional args 0..n arguments to send to the listener
+     *
+     */
+    domready: {},
+
+    /**
+     * Use domready event instead. @see domready
+     * @event event:ready
+     * @for YUI
+     * @deprecated use 'domready' instead
+     */
+    'event:ready': {
+
+        on: function() {
+            var a = Y.Array(arguments, 0, true);
+            a[0] = 'domready';
+            return Y.subscribe.apply(Y, a);
+        },
+
+        detach: function() {
+            var a = Y.Array(arguments, 0, true);
+            a[0] = 'domready';
+            return Y.unsubscribe.apply(Y, a);
+        }
+    }
+
+});
+
+
+Y.publish('domready', {
+    fireOnce: true
+});
+
+if (GLOBAL_ENV.DOMReady) {
+    // console.log('DOMReady already fired', 'info', 'event');
+    yready();
+} else {
+    // console.log('setting up before listener', 'info', 'event');
+    // console.log('env: ' + YUI.Env.windowLoaded, 'info', 'event');
+    Y.before(yready, GLOBAL_ENV, "_ready");
+}
+
+})();
+(function() {
+
+/**
+ * Custom event engine, DOM event listener abstraction layer, synthetic DOM 
+ * events.
+ * @module event
+ */
+
+/**
+ * Wraps a DOM event, properties requiring browser abstraction are
+ * fixed here.  Provids a security layer when required.
+ * @class DOMEventFacade
+ * @param ev {Event} the DOM event
+ * @param currentTarget {HTMLElement} the element the listener was attached to
+ * @param wrapper {Event.Custom} the custom event wrapper for this DOM event
+ */
+
+/*
+ * @TODO constants? LEFTBUTTON, MIDDLEBUTTON, RIGHTBUTTON, keys
+ */
+
+/*
+
+var whitelist = {
+    altKey          : 1,
+    // "button"          : 1, // we supply
+    // "bubbles"         : 1, // needed?
+    // "cancelable"      : 1, // needed? 
+    // "charCode"        : 1, // we supply
+    cancelBubble    : 1,
+    // "currentTarget"   : 1, // we supply
+    ctrlKey         : 1,
+    clientX         : 1, // needed?
+    clientY         : 1, // needed?
+    detail          : 1, // not fully implemented
+    // "fromElement"     : 1,
+    keyCode         : 1,
+    // "height"          : 1, // needed?
+    // "initEvent"       : 1, // need the init events?
+    // "initMouseEvent"  : 1,
+    // "initUIEvent"     : 1,
+    // "layerX"          : 1, // needed?
+    // "layerY"          : 1, // needed?
+    metaKey         : 1,
+    // "modifiers"       : 1, // needed?
+    // "offsetX"         : 1, // needed?
+    // "offsetY"         : 1, // needed?
+    // "preventDefault"  : 1, // we supply
+    // "reason"          : 1, // IE proprietary
+    // "relatedTarget"   : 1,
+    // "returnValue"     : 1, // needed?
+    shiftKey        : 1,
+    // "srcUrn"          : 1, // IE proprietary
+    // "srcElement"      : 1,
+    // "srcFilter"       : 1, IE proprietary
+    // "stopPropagation" : 1, // we supply
+    // "target"          : 1,
+    // "timeStamp"       : 1, // needed?
+    // "toElement"       : 1,
+    type            : 1,
+    // "view"            : 1,
+    // "which"           : 1, // we supply
+    // "width"           : 1, // needed?
+    x               : 1,
+    y               : 1
+},
+
+*/
+
+    var ua = Y.UA,
+
+    /**
+     * webkit key remapping required for Safari < 3.1
+     * @property webkitKeymap
+     * @private
+     */
+    webkitKeymap = {
+        63232: 38, // up
+        63233: 40, // down
+        63234: 37, // left
+        63235: 39, // right
+        63276: 33, // page up
+        63277: 34, // page down
+        25: 9      // SHIFT-TAB (Safari provides a different key code in
+                   // this case, even though the shiftKey modifier is set)
+    },
+
+    /**
+     * Returns a wrapped node.  Intended to be used on event targets,
+     * so it will return the node's parent if the target is a text
+     * node
+     * @method resolve
+     * @private
+     */
+    resolve = function(n) {
+
+        if (!n) {
+            return null;
+        }
+
+        try {
+            if (ua.webkit && 3 == n.nodeType) {
+                n = n.parentNode;
+            } 
+        } catch(ex) { }
+
+        return Y.Node.get(n);
+    };
+
+
+// provide a single event with browser abstractions resolved
+//
+// include all properties for both browers?
+// include only DOM2 spec properties?
+// provide browser-specific facade?
+
+Y.DOMEventFacade = function(ev, currentTarget, wrapper) {
+
+    var e = ev, ot = currentTarget, d = Y.config.doc, b = d.body,
+        x = e.pageX, y = e.pageY, c, t;
+
+    this.altKey   = e.altKey;
+    this.ctrlKey  = e.ctrlKey;
+    this.metaKey  = e.metaKey;
+    this.shiftKey = e.shiftKey;
+    this.type     = e.type;
+
+    //////////////////////////////////////////////////////
+
+    if (!x && 0 !== x) {
+        x = e.clientX || 0;
+        y = e.clientY || 0;
+
+        if (ua.ie) {
+            x += Math.max(d.documentElement.scrollLeft, b.scrollLeft);
+            y += Math.max(d.documentElement.scrollTop, b.scrollTop);
+        }
+    }
+
+    this._yuifacade = true;
+
+    /**
+     * The X location of the event on the page (including scroll)
+     * @property pageX
+     * @type int
+     */
+    this.pageX = x;
+
+    /**
+     * The Y location of the event on the page (including scroll)
+     * @property pageY
+     * @type int
+     */
+    this.pageY = y;
+
+    //////////////////////////////////////////////////////
+
+    c = e.keyCode || e.charCode || 0;
+
+    if (ua.webkit && (c in webkitKeymap)) {
+        c = webkitKeymap[c];
+    }
+
+    /**
+     * The keyCode for key events.  Uses charCode if keyCode is not available
+     * @property keyCode
+     * @type int
+     */
+    this.keyCode = c;
+
+    /**
+     * The charCode for key events.  Same as keyCode
+     * @property charCode
+     * @type int
+     */
+    this.charCode = c;
+
+    //////////////////////////////////////////////////////
+
+    /**
+     * The button that was pushed.
+     * @property button
+     * @type int
+     */
+    this.button = e.which || e.button;
+
+    /**
+     * The button that was pushed.  Same as button.
+     * @property which
+     * @type int
+     */
+    this.which = this.button;
+
+    //////////////////////////////////////////////////////
+
+    /**
+     * Node reference for the targeted element
+     * @propery target
+     * @type Node
+     */
+    this.target = resolve(e.target || e.srcElement);
+
+    /**
+     * Node reference for the element that the listener was attached to.
+     * @propery currentTarget
+     * @type Node
+     */
+    this.currentTarget = resolve(ot);
+
+    t = e.relatedTarget;
+
+    if (!t) {
+        if (e.type == "mouseout") {
+            t = e.toElement;
+        } else if (e.type == "mouseover") {
+            t = e.fromElement;
+        }
+    }
+
+    /**
+     * Node reference to the relatedTarget
+     * @propery relatedTarget
+     * @type Node
+     */
+    this.relatedTarget = resolve(t);
+    
+    //////////////////////////////////////////////////////
+    // methods
+
+    /**
+     * Stops the propagation to the next bubble target
+     * @method stopPropagation
+     */
+    this.stopPropagation = function() {
+        if (e.stopPropagation) {
+            e.stopPropagation();
+        } else {
+            e.cancelBubble = true;
+        }
+        if (wrapper) {
+            wrapper.stopPropagation();
+        }
+    };
+
+    /**
+     * Stops the propagation to the next bubble target and
+     * prevents any additional listeners from being exectued
+     * on the current target.
+     * @method stopImmediatePropagation
+     */
+    this.stopImmediatePropagation = function() {
+
+        if (e.stopImmediatePropagation) {
+            e.stopImmediatePropagation();
+        } else {
+            this.stopPropagation();
+        }
+
+        if (wrapper) {
+            wrapper.stopImmediatePropagation();
+        }
+    };
+
+    /**
+     * Prevents the event's default behavior
+     * @method preventDefault
+     */
+    this.preventDefault = function() {
+        if (e.preventDefault) {
+            e.preventDefault();
+        } else {
+            e.returnValue = false;
+        }
+
+        if (wrapper) {
+            wrapper.preventDefault();
+        }
+    };
+
+    /**
+     * Stops the event propagation and prevents the default
+     * event behavior.
+     * @method halt
+     * @param immediate {boolean} if true additional listeners
+     * on the current target will not be executed
+     */
+    this.halt = function(immediate) {
+        if (immediate) {
+            this.stopImmediatePropagation();
+        } else {
+            this.stopPropagation();
+        }
+
+        this.preventDefault();
+    };
+
+};
+
+})();
+(function() {
+/**
+ * DOM event listener abstraction layer
+ * @module event
+ */
+
+/**
+ * The event utility provides functions to add and remove event listeners,
+ * event cleansing.  It also tries to automatically remove listeners it
+ * registers during the unload event.
+ *
+ * @class Event
+ * @static
+ */
+
+
+var add = YUI.Env.add,
+remove = YUI.Env.remove,
+
+onLoad = function() {
+    YUI.Env.windowLoaded = true;
+    Y.Event._load();
+    remove(window, "load", onLoad);
+},
+
+onUnload = function() {
+    Y.Event._unload();
+    remove(window, "unload", onUnload);
+},
+
+EVENT_READY = 'domready',
+
+COMPAT_ARG = '~yui|2|compat~',
+
+shouldIterate = function(o) {
+    try {
+         
+        // Y.log('node? ' + (o instanceof Y.Node) + ', ' + ((o.size) ? o.size() : ' no size'));
+        // if (o instanceof Y.Node) {
+            // o.tagName ="adsf";
+        // }
+
+        return ( o                     && // o is something
+                 typeof o !== "string" && // o is not a string
+                 // o.length  && // o is indexed
+                 (o.length && ((!o.size) || (o.size() > 1)))  && // o is indexed
+                 !o.tagName            && // o is not an HTML element
+                 !o.alert              && // o is not a window
+                 (o.item || typeof o[0] !== "undefined") );
+    } catch(ex) {
+        Y.log("collection check failure", "warn", "event");
+        return false;
+    }
+
+},
+
+Event = function() {
+
+    /**
+     * True after the onload event has fired
+     * @property _loadComplete
+     * @type boolean
+     * @static
+     * @private
+     */
+    var _loadComplete =  false,
+
+    /**
+     * The number of times to poll after window.onload.  This number is
+     * increased if additional late-bound handlers are requested after
+     * the page load.
+     * @property _retryCount
+     * @static
+     * @private
+     */
+    _retryCount = 0,
+
+    /**
+     * onAvailable listeners
+     * @property _avail
+     * @static
+     * @private
+     */
+    _avail = [],
+
+    /**
+     * Custom event wrappers for DOM events.  Key is 
+     * 'event:' + Element uid stamp + event type
+     * @property _wrappers
+     * @type Y.Event.Custom
+     * @static
+     * @private
+     */
+    _wrappers = {},
+
+    _windowLoadKey = null,
+
+    /**
+     * Custom event wrapper map DOM events.  Key is 
+     * Element uid stamp.  Each item is a hash of custom event
+     * wrappers as provided in the _wrappers collection.  This
+     * provides the infrastructure for getListeners.
+     * @property _el_events
+     * @static
+     * @private
+     */
+    _el_events = {};
+
+    return {
+
+        /**
+         * The number of times we should look for elements that are not
+         * in the DOM at the time the event is requested after the document
+         * has been loaded.  The default is 2000@amp;20 ms, so it will poll
+         * for 40 seconds or until all outstanding handlers are bound
+         * (whichever comes first).
+         * @property POLL_RETRYS
+         * @type int
+         * @static
+         * @final
+         */
+        POLL_RETRYS: 1000,
+
+        /**
+         * The poll interval in milliseconds
+         * @property POLL_INTERVAL
+         * @type int
+         * @static
+         * @final
+         */
+        POLL_INTERVAL: 40,
+
+        /**
+         * addListener/removeListener can throw errors in unexpected scenarios.
+         * These errors are suppressed, the method returns false, and this property
+         * is set
+         * @property lastError
+         * @static
+         * @type Error
+         */
+        lastError: null,
+
+
+        /**
+         * poll handle
+         * @property _interval
+         * @static
+         * @private
+         */
+        _interval: null,
+
+        /**
+         * document readystate poll handle
+         * @property _dri
+         * @static
+         * @private
+         */
+         _dri: null,
+
+        /**
+         * True when the document is initially usable
+         * @property DOMReady
+         * @type boolean
+         * @static
+         */
+        DOMReady: false,
+
+        /**
+         * @method startInterval
+         * @static
+         * @private
+         */
+        startInterval: function() {
+            var E = Y.Event;
+
+            if (!E._interval) {
+E._interval = setInterval(Y.bind(E._poll, E), E.POLL_INTERVAL);
+            }
+        },
+
+        /**
+         * Executes the supplied callback when the item with the supplied
+         * id is found.  This is meant to be used to execute behavior as
+         * soon as possible as the page loads.  If you use this after the
+         * initial page load it will poll for a fixed time for the element.
+         * The number of times it will poll and the frequency are
+         * configurable.  By default it will poll for 10 seconds.
+         *
+         * <p>The callback is executed with a single parameter:
+         * the custom object parameter, if provided.</p>
+         *
+         * @method onAvailable
+         *
+         * @param {string||string[]}   id the id of the element, or an array
+         * of ids to look for.
+         * @param {function} fn what to execute when the element is found.
+         * @param {object}   p_obj an optional object to be passed back as
+         *                   a parameter to fn.
+         * @param {boolean|object}  p_override If set to true, fn will execute
+         *                   in the context of p_obj, if set to an object it
+         *                   will execute in the context of that object
+         * @param checkContent {boolean} check child node readiness (onContentReady)
+         * @static
+         * @deprecated Use Y.on("available")
+         */
+        // @TODO fix arguments
+        onAvailable: function(id, fn, p_obj, p_override, checkContent, compat) {
+
+            var a = Y.Array(id), i;
+
+            // Y.log('onAvailable registered for: ' + id);
+
+            for (i=0; i<a.length; i=i+1) {
+                _avail.push({ 
+                    id:         a[i], 
+                    fn:         fn, 
+                    obj:        p_obj, 
+                    override:   p_override, 
+                    checkReady: checkContent,
+                    compat:     compat 
+                });
+            }
+            _retryCount = this.POLL_RETRYS;
+
+            // We want the first test to be immediate, but async
+            setTimeout(Y.bind(Y.Event._poll, Y.Event), 0);
+
+            return new Y.EventHandle(); // @TODO by id needs a defered handle
+        },
+
+        /**
+         * Works the same way as onAvailable, but additionally checks the
+         * state of sibling elements to determine if the content of the
+         * available element is safe to modify.
+         *
+         * <p>The callback is executed with a single parameter:
+         * the custom object parameter, if provided.</p>
+         *
+         * @method onContentReady
+         *
+         * @param {string}   id the id of the element to look for.
+         * @param {function} fn what to execute when the element is ready.
+         * @param {object}   p_obj an optional object to be passed back as
+         *                   a parameter to fn.
+         * @param {boolean|object}  p_override If set to true, fn will execute
+         *                   in the context of p_obj.  If an object, fn will
+         *                   exectute in the context of that object
+         *
+         * @static
+         * @deprecated Use Y.on("contentready")
+         */
+        // @TODO fix arguments
+        onContentReady: function(id, fn, p_obj, p_override, compat) {
+            return this.onAvailable(id, fn, p_obj, p_override, true, compat);
+        },
+
+
+        /**
+         * Appends an event handler
+         *
+         * @method attach
+         *
+         * @param {String}   type     The type of event to append
+         * @param {Function} fn        The method the event invokes
+         * @param {String|HTMLElement|Array|NodeList} el An id, an element 
+         *  reference, or a collection of ids and/or elements to assign the 
+         *  listener to.
+         * @param {Object}   obj    An arbitrary object that will be 
+         *                             passed as a parameter to the handler
+         * @param {Boolean|object}  args 0..n arguments to pass to the callback
+         * @return {Boolean} True if the action was successful or defered,
+         *                        false if one or more of the elements 
+         *                        could not have the listener attached,
+         *                        or if the operation throws an exception.
+         * @static
+         */
+
+        attach: function(type, fn, el, obj) {
+            return Y.Event._attach(Y.Array(arguments, 0, true));
+        },
+
+		_createWrapper: function (el, type, capture, compat, facade) {
+
+            var ek = Y.stamp(el),
+	            key = 'event:' + ek + type,
+	            cewrapper;
+
+
+            if (false === facade) {
+                key += 'native';
+            }
+            if (capture) {
+                key += 'capture';
+            }
+
+
+            cewrapper = _wrappers[key];
+            
+
+            if (!cewrapper) {
+                // create CE wrapper
+                cewrapper = Y.publish(key, {
+                    //silent: true,
+                    // host: this,
+                    bubbles: false,
+                    contextFn: function() {
+                        cewrapper.nodeRef = cewrapper.nodeRef || Y.get(cewrapper.el);
+                        return cewrapper.nodeRef;
+                    }
+                });
+            
+                // for later removeListener calls
+                cewrapper.el = el;
+                cewrapper.type = type;
+                cewrapper.fn = function(e) {
+                    cewrapper.fire(Y.Event.getEvent(e, el, (compat || (false === facade))));
+                };
+            
+                if (el == Y.config.win && type == "load") {
+                    // window load happens once
+                    cewrapper.fireOnce = true;
+                    _windowLoadKey = key;
+                }
+            
+                _wrappers[key] = cewrapper;
+                _el_events[ek] = _el_events[ek] || {};
+                _el_events[ek][key] = cewrapper;
+            
+                add(el, type, cewrapper.fn, capture);
+            }
+
+			return cewrapper;
+			
+		},
+
+        _attach: function(args, config) {
+
+            var trimmedArgs=args.slice(1),
+                compat, E=Y.Event,
+                handles, oEl, cewrapper, context, 
+                fireNow = false, ret,
+                type = args[0],
+                fn = args[1],
+                el = args[2] || Y.config.win,
+                facade = config && config.facade,
+                capture = config && config.capture;
+
+            if (trimmedArgs[trimmedArgs.length-1] === COMPAT_ARG) {
+                compat = true;
+                trimmedArgs.pop();
+            }
+
+            if (!fn || !fn.call) {
+// throw new TypeError(type + " attach call failed, callback undefined");
+Y.log(type + " attach call failed, invalid callback", "error", "event");
+                return false;
+            }
+
+            // The el argument can be an array of elements or element ids.
+            if (shouldIterate(el)) {
+
+                // Y.log('collection: ' + el);
+                // Y.log('collection: ' + el.item(0) + ', ' + el.item(1));
+
+                handles=[];
+                
+                Y.each(el, function(v, k) {
+                    args[2] = v;
+                    handles.push(E._attach(args, config));
+                });
+
+                return (handles.length === 1) ? handles[0] : handles;
+
+            // If the el argument is a string, we assume it is 
+            // actually the id of the element.  If the page is loaded
+            // we convert el to the actual element, otherwise we 
+            // defer attaching the event until the element is
+            // ready
+            } else if (Y.Lang.isString(el)) {
+
+                // @TODO switch to using DOM directly here
+                // oEl = (compat) ? Y.DOM.byId(el) : Y.all(el);
+                oEl = (compat) ? Y.DOM.byId(el) : Y.Selector.query(el);
+
+                if (oEl) {
+
+                    if (Y.Lang.isArray(oEl)) {
+                        if (oEl.length == 1) {
+                            el = oEl[0];
+                        } else {
+                            args[2] = oEl;
+                            return E._attach(args, config);
+                        }
+
+                    // HTMLElement
+                    } else {
+                        // Y.log('no size: ' + oEl + ', ' + type);
+                        el = oEl;
+                    }
+
+                // Not found = defer adding the event until the element is available
+                } else {
+
+                    // Y.log(el + ' not found');
+
+                    return this.onAvailable(el, function() {
+                        // Y.log('lazy attach: ' + args);
+                        E._attach(args, config);
+                    }, E, true, false, compat);
+                }
+            }
+
+            // Element should be an html element or an array if we get here.
+            if (!el) {
+                Y.log("unable to attach event " + type, "warn", "event");
+                return false;
+            }
+
+            // the custom event key is the uid for the element + type
+
+            // allow a node reference to Y.on to work with load time addEventListener check
+            // (Node currently only has the addEventListener interface and that may be
+            // removed).
+            if (Y.Node && el instanceof Y.Node) {
+                return el.on.apply(el, args);
+            }
+
+ 			cewrapper = this._createWrapper(el, type, capture, compat, facade);
+
+            if (el == Y.config.win && type == "load") {
+
+                // if the load is complete, fire immediately.
+                // all subscribers, including the current one
+                // will be notified.
+                if (YUI.Env.windowLoaded) {
+                    fireNow = true;
+                }
+            }
+
+            // switched from obj to trimmedArgs[2] to deal with appened compat param
+            // context = trimmedArgs[2] || ((compat) ? el : Y.get(el));
+            context = trimmedArgs[2];
+            
+            // set the context as the second arg to subscribe
+            trimmedArgs[1] = context;
+
+            // remove the 'obj' param
+            trimmedArgs.splice(2, 1);
+
+            // set context to the Node if not specified
+            ret = cewrapper.subscribe.apply(cewrapper, trimmedArgs);
+
+            if (fireNow) {
+                cewrapper.fire();
+            }
+
+            return ret;
+
+        },
+
+        /**
+         * Removes an event listener.  Supports the signature the event was bound
+         * with, but the preferred way to remove listeners is using the handle
+         * that is returned when using Y.on
+         *
+         * @method detach
+         *
+         * @param {String|HTMLElement|Array|NodeList} el An id, an element 
+         *  reference, or a collection of ids and/or elements to remove
+         *  the listener from.
+         * @param {String} type the type of event to remove.
+         * @param {Function} fn the method the event invokes.  If fn is
+         *  undefined, then all event handlers for the type of event are *  removed.
+         * @return {boolean} true if the unbind was successful, false *  otherwise.
+         * @static
+         */
+        detach: function(type, fn, el, obj) {
+
+            var args=Y.Array(arguments, 0, true), compat, i, len, ok,
+                id, ce;
+
+            if (args[args.length-1] === COMPAT_ARG) {
+                compat = true;
+                // args.pop();
+            }
+
+            if (type && type.detach) {
+                return type.detach();
+            }
+
+
+            // The el argument can be a string
+            if (typeof el == "string") {
+
+                // el = (compat) ? Y.DOM.byId(el) : Y.all(el);
+                el = (compat) ? Y.DOM.byId(el) : Y.Selector.query(el);
+                return Y.Event.detach.apply(Y.Event, args);
+
+            // The el argument can be an array of elements or element ids.
+            } else if (shouldIterate(el)) {
+
+                ok = true;
+                for (i=0, len=el.length; i<len; ++i) {
+                    args[2] = el[i];
+                    ok = ( Y.Event.detach.apply(Y.Event, args) && ok );
+                }
+
+                return ok;
+
+            }
+
+            if (!type || !fn || !fn.call) {
+                return this.purgeElement(el, false, type);
+            }
+
+            id = 'event:' + Y.stamp(el) + type;
+            ce = _wrappers[id];
+
+            if (ce) {
+                return ce.detach(fn);
+            } else {
+                return false;
+            }
+
+        },
+
+        /**
+         * Finds the event in the window object, the caller's arguments, or
+         * in the arguments of another method in the callstack.  This is
+         * executed automatically for events registered through the event
+         * manager, so the implementer should not normally need to execute
+         * this function at all.
+         * @method getEvent
+         * @param {Event} e the event parameter from the handler
+         * @param {HTMLElement} el the element the listener was attached to
+         * @return {Event} the event 
+         * @static
+         */
+        getEvent: function(e, el, noFacade) {
+            var ev = e || window.event;
+
+            return (noFacade) ? ev : 
+                new Y.DOMEventFacade(ev, el, _wrappers['event:' + Y.stamp(el) + e.type]);
+        },
+
+        /**
+         * Generates an unique ID for the element if it does not already 
+         * have one.
+         * @method generateId
+         * @param el the element to create the id for
+         * @return {string} the resulting id of the element
+         * @static
+         */
+        generateId: function(el) {
+            var id = el.id;
+
+            if (!id) {
+                id = Y.stamp(el);
+                el.id = id;
+            }
+
+            return id;
+        },
+
+        /**
+         * We want to be able to use getElementsByTagName as a collection
+         * to attach a group of events to.  Unfortunately, different 
+         * browsers return different types of collections.  This function
+         * tests to determine if the object is array-like.  It will also 
+         * fail if the object is an array, but is empty.
+         * @method _isValidCollection
+         * @param o the object to test
+         * @return {boolean} true if the object is array-like and populated
+         * @deprecated was not meant to be used directly
+         * @static
+         * @private
+         */
+        _isValidCollection: shouldIterate,
+
+        /**
+         * hook up any deferred listeners
+         * @method _load
+         * @static
+         * @private
+         */
+        _load: function(e) {
+
+            if (!_loadComplete) {
+
+                // Y.log('Load Complete', 'info', 'event');
+
+                _loadComplete = true;
+
+                // Just in case DOMReady did not go off for some reason
+                // E._ready();
+                if (Y.fire) {
+                    Y.fire(EVENT_READY);
+                }
+
+                // Available elements may not have been detected before the
+                // window load event fires. Try to find them now so that the
+                // the user is more likely to get the onAvailable notifications
+                // before the window load notification
+                Y.Event._poll();
+
+            }
+        },
+
+        /**
+         * Polling function that runs before the onload event fires, 
+         * attempting to attach to DOM Nodes as soon as they are 
+         * available
+         * @method _poll
+         * @static
+         * @private
+         */
+        _poll: function() {
+
+            if (this.locked) {
+                return;
+            }
+
+            if (Y.UA.ie && !YUI.Env.DOMReady) {
+                // Hold off if DOMReady has not fired and check current
+                // readyState to protect against the IE operation aborted
+                // issue.
+                this.startInterval();
+                return;
+            }
+
+            this.locked = true;
+
+            // Y.log.debug("poll");
+
+            // keep trying until after the page is loaded.  We need to 
+            // check the page load state prior to trying to bind the 
+            // elements so that we can be certain all elements have been 
+            // tested appropriately
+            var tryAgain = !_loadComplete, notAvail, executeItem,
+                i, len, item, el;
+
+            if (!tryAgain) {
+                tryAgain = (_retryCount > 0);
+            }
+
+            // onAvailable
+            notAvail = [];
+
+            executeItem = function (el, item) {
+
+                var context, ov = item.override;
+
+                if (item.compat) {
+
+                    if (item.override) {
+                        if (ov === true) {
+                            context = item.obj;
+                        } else {
+                            context = ov;
+                        }
+                    } else {
+                        context = el;
+                    }
+
+                    item.fn.call(context, item.obj);
+
+                } else {
+                    context = item.obj || Y.get(el);
+                    item.fn.apply(context, (Y.Lang.isArray(ov)) ? ov : []);
+                }
+
+            };
+
+
+            // onAvailable
+            for (i=0,len=_avail.length; i<len; ++i) {
+                item = _avail[i];
+                if (item && !item.checkReady) {
+
+                    // el = (item.compat) ? Y.DOM.byId(item.id) : Y.get(item.id);
+                    el = (item.compat) ? Y.DOM.byId(item.id) : Y.Selector.query(item.id, null, true);
+
+                    if (el) {
+                        // Y.log('avail: ' + el);
+                        executeItem(el, item);
+                        _avail[i] = null;
+                    } else {
+                        // Y.log('NOT avail: ' + el);
+                        notAvail.push(item);
+                    }
+                }
+            }
+
+            // onContentReady
+            for (i=0,len=_avail.length; i<len; ++i) {
+                item = _avail[i];
+                if (item && item.checkReady) {
+
+                    // el = (item.compat) ? Y.DOM.byId(item.id) : Y.get(item.id);
+                    el = (item.compat) ? Y.DOM.byId(item.id) : Y.Selector.query(item.id, null, true);
+
+                    if (el) {
+                        // The element is available, but not necessarily ready
+                        // @todo should we test parentNode.nextSibling?
+                        if (_loadComplete || (el.get && el.get('nextSibling')) || el.nextSibling) {
+                            executeItem(el, item);
+                            _avail[i] = null;
+                        }
+                    } else {
+                        notAvail.push(item);
+                    }
+                }
+            }
+
+            _retryCount = (notAvail.length === 0) ? 0 : _retryCount - 1;
+
+            if (tryAgain) {
+                // we may need to strip the nulled out items here
+                this.startInterval();
+            } else {
+                clearInterval(this._interval);
+                this._interval = null;
+            }
+
+            this.locked = false;
+
+            return;
+
+        },
+
+        /**
+         * Removes all listeners attached to the given element via addListener.
+         * Optionally, the node's children can also be purged.
+         * Optionally, you can specify a specific type of event to remove.
+         * @method purgeElement
+         * @param {HTMLElement} el the element to purge
+         * @param {boolean} recurse recursively purge this element's children
+         * as well.  Use with caution.
+         * @param {string} type optional type of listener to purge. If
+         * left out, all listeners will be removed
+         * @static
+         */
+        purgeElement: function(el, recurse, type) {
+            // var oEl = (Y.Lang.isString(el)) ? Y.get(el) : el,
+            var oEl = (Y.Lang.isString(el)) ?  Y.Selector.query(el, null, true) : el,
+                lis = this.getListeners(oEl, type), i, len;
+            if (lis) {
+                for (i=0,len=lis.length; i<len ; ++i) {
+                    lis[i].detachAll();
+                }
+            }
+
+            if (recurse && oEl && oEl.childNodes) {
+                for (i=0,len=oEl.childNodes.length; i<len ; ++i) {
+                    this.purgeElement(oEl.childNodes[i], recurse, type);
+                }
+            }
+        },
+
+        /**
+         * Returns all listeners attached to the given element via addListener.
+         * Optionally, you can specify a specific type of event to return.
+         * @method getListeners
+         * @param el {HTMLElement|string} the element or element id to inspect 
+         * @param type {string} optional type of listener to return. If
+         * left out, all listeners will be returned
+         * @return {Y.Custom.Event} the custom event wrapper for the DOM event(s)
+         * @static
+         */           
+        getListeners: function(el, type) {
+            var ek = Y.stamp(el, true), evts = _el_events[ek],
+                results=[] , key = (type) ? 'event:' + ek + type : null;
+
+            if (!evts) {
+                return null;
+            }
+
+            if (key) {
+                if (evts[key]) {
+                    results.push(evts[key]);
+                }
+            } else {
+                Y.each(evts, function(v, k) {
+                    results.push(v);
+                });
+            }
+
+            return (results.length) ? results : null;
+        },
+
+        /**
+         * Removes all listeners registered by pe.event.  Called 
+         * automatically during the unload event.
+         * @method _unload
+         * @static
+         * @private
+         */
+        _unload: function(e) {
+
+            var E = Y.Event;
+
+            Y.each(_wrappers, function(v, k) {
+                v.detachAll();
+                remove(v.el, v.type, v.fn);
+                delete _wrappers[k];
+            });
+
+            remove(window, "load", E._load);
+            remove(window, "unload", E._unload);
+        },
+
+        
+        /**
+         * Adds a DOM event directly without the caching, cleanup, context adj, etc
+         *
+         * @method nativeAdd
+         * @param {HTMLElement} el      the element to bind the handler to
+         * @param {string}      type   the type of event handler
+         * @param {function}    fn      the callback to invoke
+         * @param {boolen}      capture capture or bubble phase
+         * @static
+         * @private
+         */
+        nativeAdd: add,
+
+        /**
+         * Basic remove listener
+         *
+         * @method nativeRemove
+         * @param {HTMLElement} el      the element to bind the handler to
+         * @param {string}      type   the type of event handler
+         * @param {function}    fn      the callback to invoke
+         * @param {boolen}      capture capture or bubble phase
+         * @static
+         * @private
+         */
+        nativeRemove: remove
+    };
+
+}();
+
+Y.Event = Event;
+
+
+if (Y.config.injected || YUI.Env.windowLoaded) {
+    onLoad();
+} else {
+    add(window, "load", onLoad);
+}
+
+// Process onAvailable/onContentReady items when when the DOM is ready in IE
+if (Y.UA.ie) {
+    Y.on(EVENT_READY, Event._poll, Event, true);
+}
+
+add(window, "unload", onUnload);
+
+Event.Custom = Y.CustomEvent;
+Event.Subscriber = Y.Subscriber;
+Event.Target = Y.EventTarget;
+Event.Handle = Y.EventHandle;
+Event.Facade = Y.EventFacade;
+
+Event._poll();
+
+})();
+/**
+ * Executes the callback as soon as the specified element 
+ * is detected in the DOM.
+ * @for YUI
+ * @event available
+ */
+Y.Env.evt.plugins.available = {
+    on: function(type, fn, id, o) {
+        var a = arguments.length > 4 ?  Y.Array(arguments, 4, true) : [];
+        return Y.Event.onAvailable.call(Y.Event, id, fn, o, a);
+    }
+};
+
+/**
+ * Executes the callback as soon as the specified element 
+ * is detected in the DOM with a nextSibling property
+ * (indicating that the element's children are available)
+ * @for YUI
+ * @event contentready
+ */
+Y.Env.evt.plugins.contentready = {
+    on: function(type, fn, id, o) {
+        var a = arguments.length > 4 ?  Y.Array(arguments, 4, true) : [];
+        return Y.Event.onContentReady.call(Y.Event, id, fn, o, a);
+    }
+};
+(function() {
+
+var adapt = Y.Env.evt.plugins,
+    CAPTURE_CONFIG = { capture: true },
+    NOOP  = function(){},
+
+    // Opera implents capture phase events per spec rather than
+    // the more useful way it is implemented in other browsers:
+    // The event doesn't fire on a target unless there is a
+    // listener on an element in the target's ancestry.  If a
+    // capture phase listener is added only to the element that 
+    // will be the target of the event, the listener won't fire.  
+    // To get around this, we register a NOOP listener on the
+    // element's parent.
+    _captureHack = function(type, o) {
+        var el = (Y.Lang.isString(o)) ? Y.Selector.query(o, null, true) : o,
+            p  = el && el.parentNode;
+
+        if (p) {
+            Y.Event._attach([type, NOOP, p], CAPTURE_CONFIG);
+        }
+    };
+
+
+/**
+ * Adds a DOM focus listener.  Uses the focusin event in IE,
+ * and the capture phase otherwise so that
+ * the event propagates in a way that enables event delegation.
+ *
+ * Note: if you are registering this event on the intended target
+ * rather than an ancestor, the element must be in the DOM in
+ * order for it to work in Opera.
+ *
+ * @for YUI
+ * @event focus
+ */
+adapt.focus = {
+    on: function(type, fn, o) {
+        var a = Y.Array(arguments, 0, true);
+        if (Y.UA.opera) {
+            _captureHack(type, o);
+        }
+        return Y.Event._attach(a, CAPTURE_CONFIG);
+    }
+};
+
+/**
+ * Adds a DOM blur listener.  Uses the focusout event in IE,
+ * and the capture phase otherwise so that
+ * the event propagates in a way that enables event delegation.
+ *
+ * Note: if you are registering this event on the intended target
+ * rather than an ancestor, the element must be in the DOM 
+ * at the time of registration in order for it to work in Opera.
+ *
+ * @for YUI
+ * @event blur
+ */
+adapt.blur = {
+    on: function(type, fn, o) {
+        var a = Y.Array(arguments, 0, true);
+        if (Y.UA.opera) {
+            _captureHack(type, o);
+        }
+        return Y.Event._attach(a, CAPTURE_CONFIG);
+    }
+
+};
+
+})();
+
+/**
+ * Add a key listener.  The listener will only be notified if the
+ * keystroke detected meets the supplied specification.  The
+ * spec consists of the key event type, followed by a colon,
+ * followed by zero or more comma separated key codes, followed
+ * by zero or more modifiers delimited by a plus sign.  Ex:
+ * press:12,65+shift+ctrl
+ * @event key
+ * @for YUI
+ * @param type {string} 'key'
+ * @param fn {string} the function to execute
+ * @param id {string} the element(s) to bind
+ * @param spec {string} the keyCode and modifier specification
+ * @param o optional context object
+ * @param args 0..n additional arguments that should be provided 
+ * to the listener.
+ * @return {Event.Handle} the detach handle
+ */
+Y.Env.evt.plugins.key = {
+
+    on: function(type, fn, id, spec, o) {
+        var a = Y.Array(arguments, 0, true),
+            parsed, etype, criteria, ename;
+
+
+        if (!spec || spec.indexOf(':') == -1) {
+Y.log('Illegal key spec, creating a regular keypress listener instead.', 'info', 'event');
+            a[0] = 'keypress';
+            return Y.on.apply(Y, a);
+        }
+
+        parsed = spec.split(':');
+
+        // key event type: 'down', 'up', or 'press'
+        etype = parsed[0];
+
+        // list of key codes optionally followed by modifiers
+        criteria = (parsed[1]) ? parsed[1].split(/,|\+/) : null;
+
+        // the name of the custom event that will be created for the spec
+        ename = (Y.Lang.isString(id) ? id : Y.stamp(id)) + spec;
+
+        ename = ename.replace(/,/g, '_');
+
+        if (!Y.getEvent(ename)) {
+
+            // subscribe spec validator to the DOM event
+            Y.on(type + etype, function(e) {
+
+                // Y.log('keylistener: ' + e.keyCode);
+                
+                var passed = false, failed = false, i, crit, critInt;
+
+                for (i=0; i<criteria.length; i=i+1) {
+                    crit = criteria[i]; 
+                    critInt = parseInt(crit, 10);
+
+                    // pass this section if any supplied keyCode 
+                    // is found
+                    if (Y.Lang.isNumber(critInt)) {
+
+                        if (e.charCode === critInt) {
+                            // Y.log('passed: ' + crit);
+                            passed = true;
+                        } else {
+                            failed = true;
+                            // Y.log('failed: ' + crit);
+                        }
+
+                    // only check modifier if no keyCode was specified
+                    // or the keyCode check was successful.  pass only 
+                    // if every modifier passes
+                    } else if (passed || !failed) {
+                        passed = (e[crit + 'Key']);
+                        failed = !passed;
+                        // Y.log(crit + ": " + passed);
+                    }                    
+                }
+
+                // fire spec custom event if spec if met
+                if (passed) {
+                    Y.fire(ename, e);
+                }
+
+            }, id);
+
+        }
+
+        // subscribe supplied listener to custom event for spec validator
+        // remove element and spec.
+        a.splice(2, 2);
+        a[0] = ename;
+
+        return Y.on.apply(Y, a);
+    }
+};
+(function() {
+
+var Lang = Y.Lang,
+	delegates = {},
+	resolveTextNode = function(n) {
+	    try {
+	        if (n && 3 == n.nodeType) {
+	            return n.parentNode;
+	        }
+	    } catch(e) { }
+	    return n;
+	},
+    _worker = function(delegateKey, e, el) {
+        var target = resolveTextNode((e.target || e.srcElement)), 
+            tests  = delegates[delegateKey],
+            spec, 
+			ename,
+			elements,
+			nElements,
+			matched,
+			ev,
+			i;
+
+        for (spec in tests) {
+            if (tests.hasOwnProperty(spec)) {
+                ename  = tests[spec];
+				elements = Y.Selector.query(spec, el);
+				nElements = elements.length;
+				if (nElements > 0) {
+					i = elements.length - 1;
+					do {
+						matched = elements[i];
+	                    if (matched === target || Y.DOM.contains(matched, target)) {
+
+                            if (!ev) {
+                                ev = new Y.DOMEventFacade(e, el);
+	                            ev.container = ev.currentTarget;
+                            }
+
+	                        ev.currentTarget = Y.Node.get(matched);
+	                        Y.fire(ename, ev);
+	                    }
+					}
+					while (i--);
+				}
+            }
+        }
+    },
+
+	attach = function (type, key, element) {
+		Y.Event._attach([type, function (e) {
+            _worker(key, (e || window.event), element);
+		}, element], { facade: false });
+	},
+
+    _sanitize = Y.cached(function(str) {
+        return str.replace(/[|,:]/g, '~');
+    });
+
+/**
+ * Sets up a delegated listener container.
+ * @event delegate
+ * @param type {string} 'delegate'
+ * @param fn {string} the function to execute
+ * @param el {string|node} the element that is the delegation container
+ * @param delegateType {string} the event type to delegate
+ * @param spec {string} a selector that must match the target of the
+ * event.
+ * @return {EventHandle} the detach handle
+ * @for YUI
+ */
+Y.Env.evt.plugins.delegate = {
+
+    on: function(type, fn, el, delegateType, spec) {
+
+        if (!spec) {
+            Y.log('delegate: no spec, nothing to do', 'warn', 'event');
+            return false;
+        }
+
+        // identifier to target the container
+        var guid = (Lang.isString(el) ? el : Y.stamp(el)), 
+                
+            // the custom event for the delegation spec
+            ename = 'delegate:' + guid + delegateType + _sanitize(spec),
+
+            // the key to the listener for the event type and container
+            delegateKey = delegateType + guid,
+
+            a = Y.Array(arguments, 0, true),
+
+			element;
+		
+
+        if (!(delegateKey in delegates)) {
+
+			if (Lang.isString(el)) {	//	Selector
+				element = Y.Selector.query(el);				
+			}
+			else {	// Node instance
+				element = Y.Node.getDOMNode(el);
+			}
+
+			if (Lang.isArray(element)) {
+
+				Y.Array.each(element, function (v) {
+					attach(delegateType, delegateKey, v);
+				});
+
+			}
+			else {
+				attach(delegateType, delegateKey, element);
+			}
+
+            delegates[delegateKey] = {};
+        }
+
+        delegates[delegateKey][spec] = ename;
+
+        a[0] = ename;
+
+        // remove element, delegation spec and context object from the args
+        a.splice(2, 3);
+            
+        // subscribe to the custom event for the delegation spec
+        return Y.on.apply(Y, a);
+    }
+};
+
+})();
+(function() {
+
+var detachHandle,
+
+    timerHandle,
+
+    CE_NAME = 'window:resize',
+
+    handler = function(e) {
+
+        if (Y.UA.gecko) {
+
+            Y.fire(CE_NAME, e);
+
+        } else {
+
+            if (timerHandle) {
+                timerHandle.cancel();
+            }
+
+            timerHandle = Y.later(Y.config.windowResizeDelay || 40, Y, function() {
+                Y.fire(CE_NAME, e);
+            });
+        }
+        
+    };
+
+
+/**
+ * Firefox fires the window resize event once when the resize action
+ * finishes, other browsers fire the event periodically during the
+ * resize.  This code uses timeout logic to simulate the Firefox 
+ * behavior in other browsers.
+ * @event windowresize
+ * @for YUI
+ */
+Y.Env.evt.plugins.windowresize = {
+
+    on: function(type, fn) {
+
+        // check for single window listener and add if needed
+        if (!detachHandle) {
+            detachHandle = Y.Event._attach(['resize', handler]);
+        }
+
+        var a = Y.Array(arguments, 0, true);
+        a[0] = CE_NAME;
+
+        return Y.on.apply(Y, a);
+    }
+};
+
+})();
+var isString = Y.Lang.isString,
+
+	fireMouseEventForNode = function (node, relatedTarget, eventName, e, spec) {
+
+		if (!node.compareTo(relatedTarget) && !node.contains(relatedTarget)) {
+
+			e.container = e.currentTarget;
+			e.currentTarget = node;
+
+			Y.fire(eventName, e);
+			
+		}
+
+	},
+
+
+	handleMouseEvent = function (e, eventName, spec) {
+
+		var relatedTarget = e.relatedTarget,
+			currentTarget = e.currentTarget,
+			target = e.target;
+
+		if (spec) {
+
+			currentTarget.queryAll(spec).some(function (v) {
+
+				var bReturnVal;
+
+				if (v.compareTo(target) || v.contains(target)) {
+					fireMouseEventForNode(v, relatedTarget, eventName, e, spec);
+					bReturnVal = true;
+				}
+				
+				return bReturnVal; 
+			
+			});
+		
+		}
+		else {
+			fireMouseEventForNode(currentTarget, relatedTarget, eventName, e);
+		}
+
+	},
+
+	sanitize = Y.cached(function (str) {
+
+    	return str.replace(/[|,:]/g, "~");
+
+	}),
+
+	eventConfig = {
+
+    	on: function(type, fn, el, spec) {
+
+	        var sDOMEvent = (type === "mouseenter") ? "mouseover" : "mouseout",
+				sEventName = type + ":" + (isString(el) ? el : Y.stamp(el)) + sDOMEvent,
+	            args = Y.Array(arguments, 0, true),
+				sSelector;
+
+			if (isString(spec)) {
+				sSelector = spec;
+				sEventName = sEventName + sanitize(sSelector);
+			}
+
+	        if (!Y.getEvent(sEventName)) {
+
+	            // Set up the listener on the container
+	            Y.on(sDOMEvent, function (e) {
+	
+					handleMouseEvent(e, sEventName, sSelector);
+
+				}, el);
+	        }
+
+	        args[0] = sEventName;
+
+
+	        // Remove the element (and the spec--if defined) from the args
+		
+			if (sSelector) {
+	        	args.splice(2, 2);
+			}
+			else {
+				args.splice(2, 1);
+			}
+            
+
+	        // Subscribe to the custom event for the delegation spec
+	        return Y.on.apply(Y, args);
+
+	    }
+
+	};
+
+/**
+ * Sets up a "mouseenter" listener&#151;a listener that is called the first time 
+ * the user's mouse enters the specified element(s).  By passing a CSS selector 
+ * as the fourth argument, can also be used to delegate a "mouseenter" 
+ * event listener.
+ * 
+ * @event mouseenter
+ * @param type {string} "mouseenter"
+ * @param fn {string} The method the event invokes.
+ * @param el {string|node} The element(s) to assign the listener to.
+ * @param spec {string} Optional.  String representing a selector that must 
+ * match the target of the event in order for the listener to be called.
+ * @return {EventHandle} the detach handle
+ * @for YUI
+ */
+Y.Env.evt.plugins.mouseenter = eventConfig;
+
+/**
+* Sets up a "mouseleave" listener&#151;a listener that is called the first time 
+* the user's mouse leaves the specified element(s).  By passing a CSS selector 
+* as the fourth argument, can also be used to delegate a "mouseleave" 
+* event listener.
+* 
+* @event mouseleave
+* @param type {string} "mouseleave"
+* @param fn {string} The method the event invokes.
+* @param el {string|node} The element(s) to assign the listener to.
+* @param spec {string} Optional.  String representing a selector that must 
+* match the target of the event in order for the listener to be called.
+* @return {EventHandle} the detach handle
+* @for YUI
+ */
+Y.Env.evt.plugins.mouseleave = eventConfig;
+
+
+}, '3.0.0b1' ,{requires:['event-custom']});