diff -r 322d0feea350 -r 89ef5ed3c48b src/cm/media/js/lib/yui/yui_3.10.3/build/event-custom-base/event-custom-base.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/cm/media/js/lib/yui/yui_3.10.3/build/event-custom-base/event-custom-base.js	Tue Jul 16 14:29:46 2013 +0200
@@ -0,0 +1,2465 @@
+/*
+YUI 3.10.3 (build 2fb5187)
+Copyright 2013 Yahoo! Inc. All rights reserved.
+Licensed under the BSD License.
+http://yuilibrary.com/license/
+*/
+
+YUI.add('event-custom-base', function (Y, NAME) {
+
+/**
+ * Custom event engine, DOM event listener abstraction layer, synthetic DOM
+ * events.
+ * @module event-custom
+ */
+
+Y.Env.evt = {
+    handles: {},
+    plugins: {}
+};
+
+
+/**
+ * Custom event engine, DOM event listener abstraction layer, synthetic DOM
+ * events.
+ * @module event-custom
+ * @submodule event-custom-base
+ */
+
+/**
+ * Allows for the insertion of methods that are executed before or after
+ * a specified method
+ * @class Do
+ * @static
+ */
+
+var DO_BEFORE = 0,
+    DO_AFTER = 1,
+
+DO = {
+
+    /**
+     * Cache of objects touched by the utility
+     * @property objs
+     * @static
+     * @deprecated Since 3.6.0. The `_yuiaop` property on the AOP'd object
+     * replaces the role of this property, but is considered to be private, and
+     * is only mentioned to provide a migration path.
+     *
+     * If you have a use case which warrants migration to the _yuiaop property,
+     * please file a ticket to let us know what it's used for and we can see if
+     * we need to expose hooks for that functionality more formally.
+     */
+    objs: null,
+
+    /**
+     * <p>Execute the supplied method before the specified function.  Wrapping
+     * function may optionally return an instance of the following classes to
+     * further alter runtime behavior:</p>
+     * <dl>
+     *     <dt></code>Y.Do.Halt(message, returnValue)</code></dt>
+     *         <dd>Immediatly stop execution and return
+     *         <code>returnValue</code>.  No other wrapping functions will be
+     *         executed.</dd>
+     *     <dt></code>Y.Do.AlterArgs(message, newArgArray)</code></dt>
+     *         <dd>Replace the arguments that the original function will be
+     *         called with.</dd>
+     *     <dt></code>Y.Do.Prevent(message)</code></dt>
+     *         <dd>Don't execute the wrapped function.  Other before phase
+     *         wrappers will be executed.</dd>
+     * </dl>
+     *
+     * @method before
+     * @param fn {Function} the function to execute
+     * @param obj the object hosting the method to displace
+     * @param sFn {string} the name of the method to displace
+     * @param c The execution context for fn
+     * @param arg* {mixed} 0..n additional arguments to supply to the subscriber
+     * when the event fires.
+     * @return {string} handle for the subscription
+     * @static
+     */
+    before: function(fn, obj, sFn, c) {
+        var f = fn, a;
+        if (c) {
+            a = [fn, c].concat(Y.Array(arguments, 4, true));
+            f = Y.rbind.apply(Y, a);
+        }
+
+        return this._inject(DO_BEFORE, f, obj, sFn);
+    },
+
+    /**
+     * <p>Execute the supplied method after the specified function.  Wrapping
+     * function may optionally return an instance of the following classes to
+     * further alter runtime behavior:</p>
+     * <dl>
+     *     <dt></code>Y.Do.Halt(message, returnValue)</code></dt>
+     *         <dd>Immediatly stop execution and return
+     *         <code>returnValue</code>.  No other wrapping functions will be
+     *         executed.</dd>
+     *     <dt></code>Y.Do.AlterReturn(message, returnValue)</code></dt>
+     *         <dd>Return <code>returnValue</code> instead of the wrapped
+     *         method's original return value.  This can be further altered by
+     *         other after phase wrappers.</dd>
+     * </dl>
+     *
+     * <p>The static properties <code>Y.Do.originalRetVal</code> and
+     * <code>Y.Do.currentRetVal</code> will be populated for reference.</p>
+     *
+     * @method after
+     * @param fn {Function} the function to execute
+     * @param obj the object hosting the method to displace
+     * @param sFn {string} the name of the method to displace
+     * @param c The execution context for fn
+     * @param arg* {mixed} 0..n additional arguments to supply to the subscriber
+     * @return {string} handle for the subscription
+     * @static
+     */
+    after: function(fn, obj, sFn, c) {
+        var f = fn, a;
+        if (c) {
+            a = [fn, c].concat(Y.Array(arguments, 4, true));
+            f = Y.rbind.apply(Y, a);
+        }
+
+        return this._inject(DO_AFTER, f, obj, sFn);
+    },
+
+    /**
+     * Execute the supplied method before or after the specified function.
+     * Used by <code>before</code> and <code>after</code>.
+     *
+     * @method _inject
+     * @param when {string} before or after
+     * @param fn {Function} the function to execute
+     * @param obj the object hosting the method to displace
+     * @param sFn {string} the name of the method to displace
+     * @param c The execution context for fn
+     * @return {string} handle for the subscription
+     * @private
+     * @static
+     */
+    _inject: function(when, fn, obj, sFn) {
+        // object id
+        var id = Y.stamp(obj), o, sid;
+
+        if (!obj._yuiaop) {
+            // create a map entry for the obj if it doesn't exist, to hold overridden methods
+            obj._yuiaop = {};
+        }
+
+        o = obj._yuiaop;
+
+        if (!o[sFn]) {
+            // create a map entry for the method if it doesn't exist
+            o[sFn] = new Y.Do.Method(obj, sFn);
+
+            // re-route the method to our wrapper
+            obj[sFn] = function() {
+                return o[sFn].exec.apply(o[sFn], arguments);
+            };
+        }
+
+        // subscriber id
+        sid = id + Y.stamp(fn) + sFn;
+
+        // register the callback
+        o[sFn].register(sid, fn, when);
+
+        return new Y.EventHandle(o[sFn], sid);
+    },
+
+    /**
+     * Detach a before or after subscription.
+     *
+     * @method detach
+     * @param handle {string} the subscription handle
+     * @static
+     */
+    detach: function(handle) {
+        if (handle.detach) {
+            handle.detach();
+        }
+    }
+};
+
+Y.Do = DO;
+
+//////////////////////////////////////////////////////////////////////////
+
+/**
+ * Contains the return value from the wrapped method, accessible
+ * by 'after' event listeners.
+ *
+ * @property originalRetVal
+ * @static
+ * @since 3.2.0
+ */
+
+/**
+ * Contains the current state of the return value, consumable by
+ * 'after' event listeners, and updated if an after subscriber
+ * changes the return value generated by the wrapped function.
+ *
+ * @property currentRetVal
+ * @static
+ * @since 3.2.0
+ */
+
+//////////////////////////////////////////////////////////////////////////
+
+/**
+ * Wrapper for a displaced method with aop enabled
+ * @class Do.Method
+ * @constructor
+ * @param obj The object to operate on
+ * @param sFn The name of the method to displace
+ */
+DO.Method = function(obj, sFn) {
+    this.obj = obj;
+    this.methodName = sFn;
+    this.method = obj[sFn];
+    this.before = {};
+    this.after = {};
+};
+
+/**
+ * Register a aop subscriber
+ * @method register
+ * @param sid {string} the subscriber id
+ * @param fn {Function} the function to execute
+ * @param when {string} when to execute the function
+ */
+DO.Method.prototype.register = function (sid, fn, when) {
+    if (when) {
+        this.after[sid] = fn;
+    } else {
+        this.before[sid] = fn;
+    }
+};
+
+/**
+ * Unregister a aop subscriber
+ * @method delete
+ * @param sid {string} the subscriber id
+ * @param fn {Function} the function to execute
+ * @param when {string} when to execute the function
+ */
+DO.Method.prototype._delete = function (sid) {
+    delete this.before[sid];
+    delete this.after[sid];
+};
+
+/**
+ * <p>Execute the wrapped method.  All arguments are passed into the wrapping
+ * functions.  If any of the before wrappers return an instance of
+ * <code>Y.Do.Halt</code> or <code>Y.Do.Prevent</code>, neither the wrapped
+ * function nor any after phase subscribers will be executed.</p>
+ *
+ * <p>The return value will be the return value of the wrapped function or one
+ * provided by a wrapper function via an instance of <code>Y.Do.Halt</code> or
+ * <code>Y.Do.AlterReturn</code>.
+ *
+ * @method exec
+ * @param arg* {any} Arguments are passed to the wrapping and wrapped functions
+ * @return {any} Return value of wrapped function unless overwritten (see above)
+ */
+DO.Method.prototype.exec = function () {
+
+    var args = Y.Array(arguments, 0, true),
+        i, ret, newRet,
+        bf = this.before,
+        af = this.after,
+        prevented = false;
+
+    // execute before
+    for (i in bf) {
+        if (bf.hasOwnProperty(i)) {
+            ret = bf[i].apply(this.obj, args);
+            if (ret) {
+                switch (ret.constructor) {
+                    case DO.Halt:
+                        return ret.retVal;
+                    case DO.AlterArgs:
+                        args = ret.newArgs;
+                        break;
+                    case DO.Prevent:
+                        prevented = true;
+                        break;
+                    default:
+                }
+            }
+        }
+    }
+
+    // execute method
+    if (!prevented) {
+        ret = this.method.apply(this.obj, args);
+    }
+
+    DO.originalRetVal = ret;
+    DO.currentRetVal = ret;
+
+    // execute after methods.
+    for (i in af) {
+        if (af.hasOwnProperty(i)) {
+            newRet = af[i].apply(this.obj, args);
+            // Stop processing if a Halt object is returned
+            if (newRet && newRet.constructor === DO.Halt) {
+                return newRet.retVal;
+            // Check for a new return value
+            } else if (newRet && newRet.constructor === DO.AlterReturn) {
+                ret = newRet.newRetVal;
+                // Update the static retval state
+                DO.currentRetVal = ret;
+            }
+        }
+    }
+
+    return ret;
+};
+
+//////////////////////////////////////////////////////////////////////////
+
+/**
+ * Return an AlterArgs object when you want to change the arguments that
+ * were passed into the function.  Useful for Do.before subscribers.  An
+ * example would be a service that scrubs out illegal characters prior to
+ * executing the core business logic.
+ * @class Do.AlterArgs
+ * @constructor
+ * @param msg {String} (optional) Explanation of the altered return value
+ * @param newArgs {Array} Call parameters to be used for the original method
+ *                        instead of the arguments originally passed in.
+ */
+DO.AlterArgs = function(msg, newArgs) {
+    this.msg = msg;
+    this.newArgs = newArgs;
+};
+
+/**
+ * Return an AlterReturn object when you want to change the result returned
+ * from the core method to the caller.  Useful for Do.after subscribers.
+ * @class Do.AlterReturn
+ * @constructor
+ * @param msg {String} (optional) Explanation of the altered return value
+ * @param newRetVal {any} Return value passed to code that invoked the wrapped
+ *                      function.
+ */
+DO.AlterReturn = function(msg, newRetVal) {
+    this.msg = msg;
+    this.newRetVal = newRetVal;
+};
+
+/**
+ * Return a Halt object when you want to terminate the execution
+ * of all subsequent subscribers as well as the wrapped method
+ * if it has not exectued yet.  Useful for Do.before subscribers.
+ * @class Do.Halt
+ * @constructor
+ * @param msg {String} (optional) Explanation of why the termination was done
+ * @param retVal {any} Return value passed to code that invoked the wrapped
+ *                      function.
+ */
+DO.Halt = function(msg, retVal) {
+    this.msg = msg;
+    this.retVal = retVal;
+};
+
+/**
+ * Return a Prevent object when you want to prevent the wrapped function
+ * from executing, but want the remaining listeners to execute.  Useful
+ * for Do.before subscribers.
+ * @class Do.Prevent
+ * @constructor
+ * @param msg {String} (optional) Explanation of why the termination was done
+ */
+DO.Prevent = function(msg) {
+    this.msg = msg;
+};
+
+/**
+ * Return an Error object when you want to terminate the execution
+ * of all subsequent method calls.
+ * @class Do.Error
+ * @constructor
+ * @param msg {String} (optional) Explanation of the altered return value
+ * @param retVal {any} Return value passed to code that invoked the wrapped
+ *                      function.
+ * @deprecated use Y.Do.Halt or Y.Do.Prevent
+ */
+DO.Error = DO.Halt;
+
+
+//////////////////////////////////////////////////////////////////////////
+
+/**
+ * Custom event engine, DOM event listener abstraction layer, synthetic DOM
+ * events.
+ * @module event-custom
+ * @submodule event-custom-base
+ */
+
+
+// var onsubscribeType = "_event:onsub",
+var YArray = Y.Array,
+
+    AFTER = 'after',
+    CONFIGS = [
+        'broadcast',
+        'monitored',
+        'bubbles',
+        'context',
+        'contextFn',
+        'currentTarget',
+        'defaultFn',
+        'defaultTargetOnly',
+        'details',
+        'emitFacade',
+        'fireOnce',
+        'async',
+        'host',
+        'preventable',
+        'preventedFn',
+        'queuable',
+        'silent',
+        'stoppedFn',
+        'target',
+        'type'
+    ],
+
+    CONFIGS_HASH = YArray.hash(CONFIGS),
+
+    nativeSlice = Array.prototype.slice,
+
+    YUI3_SIGNATURE = 9,
+    YUI_LOG = 'yui:log',
+
+    mixConfigs = function(r, s, ov) {
+        var p;
+
+        for (p in s) {
+            if (CONFIGS_HASH[p] && (ov || !(p in r))) {
+                r[p] = s[p];
+            }
+        }
+
+        return r;
+    };
+
+/**
+ * The CustomEvent class lets you define events for your application
+ * that can be subscribed to by one or more independent component.
+ *
+ * @param {String} type The type of event, which is passed to the callback
+ * when the event fires.
+ * @param {object} defaults configuration object.
+ * @class CustomEvent
+ * @constructor
+ */
+
+ /**
+ * The type of event, returned to subscribers when the event fires
+ * @property type
+ * @type string
+ */
+
+/**
+ * By default all custom events are logged in the debug build, set silent
+ * to true to disable debug outpu for this event.
+ * @property silent
+ * @type boolean
+ */
+
+Y.CustomEvent = function(type, defaults) {
+
+    this._kds = Y.CustomEvent.keepDeprecatedSubs;
+
+    this.id = Y.guid();
+
+    this.type = type;
+    this.silent = this.logSystem = (type === YUI_LOG);
+
+    if (this._kds) {
+        /**
+         * The subscribers to this event
+         * @property subscribers
+         * @type Subscriber {}
+         * @deprecated
+         */
+
+        /**
+         * 'After' subscribers
+         * @property afters
+         * @type Subscriber {}
+         * @deprecated
+         */
+        this.subscribers = {};
+        this.afters = {};
+    }
+
+    if (defaults) {
+        mixConfigs(this, defaults, true);
+    }
+};
+
+/**
+ * Static flag to enable population of the <a href="#property_subscribers">`subscribers`</a>
+ * and  <a href="#property_subscribers">`afters`</a> properties held on a `CustomEvent` instance.
+ *
+ * These properties were changed to private properties (`_subscribers` and `_afters`), and
+ * converted from objects to arrays for performance reasons.
+ *
+ * Setting this property to true will populate the deprecated `subscribers` and `afters`
+ * properties for people who may be using them (which is expected to be rare). There will
+ * be a performance hit, compared to the new array based implementation.
+ *
+ * If you are using these deprecated properties for a use case which the public API
+ * does not support, please file an enhancement request, and we can provide an alternate
+ * public implementation which doesn't have the performance cost required to maintiain the
+ * properties as objects.
+ *
+ * @property keepDeprecatedSubs
+ * @static
+ * @for CustomEvent
+ * @type boolean
+ * @default false
+ * @deprecated
+ */
+Y.CustomEvent.keepDeprecatedSubs = false;
+
+Y.CustomEvent.mixConfigs = mixConfigs;
+
+Y.CustomEvent.prototype = {
+
+    constructor: Y.CustomEvent,
+
+    /**
+     * Monitor when an event is attached or detached.
+     *
+     * @property monitored
+     * @type boolean
+     */
+
+    /**
+     * If 0, this event does not broadcast.  If 1, the YUI instance is notified
+     * every time this event fires.  If 2, the YUI instance and the YUI global
+     * (if event is enabled on the global) are notified every time this event
+     * fires.
+     * @property broadcast
+     * @type int
+     */
+
+    /**
+     * Specifies whether this event should be queued when the host is actively
+     * processing an event.  This will effect exectution order of the callbacks
+     * for the various events.
+     * @property queuable
+     * @type boolean
+     * @default false
+     */
+
+    /**
+     * This event has fired if true
+     *
+     * @property fired
+     * @type boolean
+     * @default false;
+     */
+
+    /**
+     * An array containing the arguments the custom event
+     * was last fired with.
+     * @property firedWith
+     * @type Array
+     */
+
+    /**
+     * This event should only fire one time if true, and if
+     * it has fired, any new subscribers should be notified
+     * immediately.
+     *
+     * @property fireOnce
+     * @type boolean
+     * @default false;
+     */
+
+    /**
+     * fireOnce listeners will fire syncronously unless async
+     * is set to true
+     * @property async
+     * @type boolean
+     * @default false
+     */
+
+    /**
+     * Flag for stopPropagation that is modified during fire()
+     * 1 means to stop propagation to bubble targets.  2 means
+     * to also stop additional subscribers on this target.
+     * @property stopped
+     * @type int
+     */
+
+    /**
+     * Flag for preventDefault that is modified during fire().
+     * if it is not 0, the default behavior for this event
+     * @property prevented
+     * @type int
+     */
+
+    /**
+     * Specifies the host for this custom event.  This is used
+     * to enable event bubbling
+     * @property host
+     * @type EventTarget
+     */
+
+    /**
+     * The default function to execute after event listeners
+     * have fire, but only if the default action was not
+     * prevented.
+     * @property defaultFn
+     * @type Function
+     */
+
+    /**
+     * The function to execute if a subscriber calls
+     * stopPropagation or stopImmediatePropagation
+     * @property stoppedFn
+     * @type Function
+     */
+
+    /**
+     * The function to execute if a subscriber calls
+     * preventDefault
+     * @property preventedFn
+     * @type Function
+     */
+
+    /**
+     * The subscribers to this event
+     * @property _subscribers
+     * @type Subscriber []
+     * @private
+     */
+
+    /**
+     * 'After' subscribers
+     * @property _afters
+     * @type Subscriber []
+     * @private
+     */
+
+    /**
+     * If set to true, the custom event will deliver an EventFacade object
+     * that is similar to a DOM event object.
+     * @property emitFacade
+     * @type boolean
+     * @default false
+     */
+
+    /**
+     * Supports multiple options for listener signatures in order to
+     * port YUI 2 apps.
+     * @property signature
+     * @type int
+     * @default 9
+     */
+    signature : YUI3_SIGNATURE,
+
+    /**
+     * The context the the event will fire from by default.  Defaults to the YUI
+     * instance.
+     * @property context
+     * @type object
+     */
+    context : Y,
+
+    /**
+     * Specifies whether or not this event's default function
+     * can be cancelled by a subscriber by executing preventDefault()
+     * on the event facade
+     * @property preventable
+     * @type boolean
+     * @default true
+     */
+    preventable : true,
+
+    /**
+     * Specifies whether or not a subscriber can stop the event propagation
+     * via stopPropagation(), stopImmediatePropagation(), or halt()
+     *
+     * Events can only bubble if emitFacade is true.
+     *
+     * @property bubbles
+     * @type boolean
+     * @default true
+     */
+    bubbles : true,
+
+    /**
+     * Returns the number of subscribers for this event as the sum of the on()
+     * subscribers and after() subscribers.
+     *
+     * @method hasSubs
+     * @return Number
+     */
+    hasSubs: function(when) {
+        var s = 0,
+            a = 0,
+            subs = this._subscribers,
+            afters = this._afters,
+            sib = this.sibling;
+
+        if (subs) {
+            s = subs.length;
+        }
+
+        if (afters) {
+            a = afters.length;
+        }
+
+        if (sib) {
+            subs = sib._subscribers;
+            afters = sib._afters;
+
+            if (subs) {
+                s += subs.length;
+            }
+
+            if (afters) {
+                a += afters.length;
+            }
+        }
+
+        if (when) {
+            return (when === 'after') ? a : s;
+        }
+
+        return (s + a);
+    },
+
+    /**
+     * Monitor the event state for the subscribed event.  The first parameter
+     * is what should be monitored, the rest are the normal parameters when
+     * subscribing to an event.
+     * @method monitor
+     * @param what {string} what to monitor ('detach', 'attach', 'publish').
+     * @return {EventHandle} return value from the monitor event subscription.
+     */
+    monitor: function(what) {
+        this.monitored = true;
+        var type = this.id + '|' + this.type + '_' + what,
+            args = nativeSlice.call(arguments, 0);
+        args[0] = type;
+        return this.host.on.apply(this.host, args);
+    },
+
+    /**
+     * Get all of the subscribers to this event and any sibling event
+     * @method getSubs
+     * @return {Array} first item is the on subscribers, second the after.
+     */
+    getSubs: function() {
+
+        var sibling = this.sibling,
+            subs = this._subscribers,
+            afters = this._afters,
+            siblingSubs,
+            siblingAfters;
+
+        if (sibling) {
+            siblingSubs = sibling._subscribers;
+            siblingAfters = sibling._afters;
+        }
+
+        if (siblingSubs) {
+            if (subs) {
+                subs = subs.concat(siblingSubs);
+            } else {
+                subs = siblingSubs.concat();
+            }
+        } else {
+            if (subs) {
+                subs = subs.concat();
+            } else {
+                subs = [];
+            }
+        }
+
+        if (siblingAfters) {
+            if (afters) {
+                afters = afters.concat(siblingAfters);
+            } else {
+                afters = siblingAfters.concat();
+            }
+        } else {
+            if (afters) {
+                afters = afters.concat();
+            } else {
+                afters = [];
+            }
+        }
+
+        return [subs, afters];
+    },
+
+    /**
+     * Apply configuration properties.  Only applies the CONFIG whitelist
+     * @method applyConfig
+     * @param o hash of properties to apply.
+     * @param force {boolean} if true, properties that exist on the event
+     * will be overwritten.
+     */
+    applyConfig: function(o, force) {
+        mixConfigs(this, o, force);
+    },
+
+    /**
+     * Create the Subscription for subscribing function, context, and bound
+     * arguments.  If this is a fireOnce event, the subscriber is immediately
+     * notified.
+     *
+     * @method _on
+     * @param fn {Function} Subscription callback
+     * @param [context] {Object} Override `this` in the callback
+     * @param [args] {Array} bound arguments that will be passed to the callback after the arguments generated by fire()
+     * @param [when] {String} "after" to slot into after subscribers
+     * @return {EventHandle}
+     * @protected
+     */
+    _on: function(fn, context, args, when) {
+
+
+        var s = new Y.Subscriber(fn, context, args, when);
+
+        if (this.fireOnce && this.fired) {
+            if (this.async) {
+                setTimeout(Y.bind(this._notify, this, s, this.firedWith), 0);
+            } else {
+                this._notify(s, this.firedWith);
+            }
+        }
+
+        if (when === AFTER) {
+            if (!this._afters) {
+                this._afters = [];
+                this._hasAfters = true;
+            }
+            this._afters.push(s);
+        } else {
+            if (!this._subscribers) {
+                this._subscribers = [];
+                this._hasSubs = true;
+            }
+            this._subscribers.push(s);
+        }
+
+        if (this._kds) {
+            if (when === AFTER) {
+                this.afters[s.id] = s;
+            } else {
+                this.subscribers[s.id] = s;
+            }
+        }
+
+        return new Y.EventHandle(this, s);
+    },
+
+    /**
+     * Listen for this event
+     * @method subscribe
+     * @param {Function} fn The function to execute.
+     * @return {EventHandle} Unsubscribe handle.
+     * @deprecated use on.
+     */
+    subscribe: function(fn, context) {
+        var a = (arguments.length > 2) ? nativeSlice.call(arguments, 2) : null;
+        return this._on(fn, context, a, true);
+    },
+
+    /**
+     * Listen for this event
+     * @method on
+     * @param {Function} fn The function to execute.
+     * @param {object} context optional execution context.
+     * @param {mixed} arg* 0..n additional arguments to supply to the subscriber
+     * when the event fires.
+     * @return {EventHandle} An object with a detach method to detch the handler(s).
+     */
+    on: function(fn, context) {
+        var a = (arguments.length > 2) ? nativeSlice.call(arguments, 2) : null;
+
+        if (this.monitored && this.host) {
+            this.host._monitor('attach', this, {
+                args: arguments
+            });
+        }
+        return this._on(fn, context, a, true);
+    },
+
+    /**
+     * Listen for this event after the normal subscribers have been notified and
+     * the default behavior has been applied.  If a normal subscriber prevents the
+     * default behavior, it also prevents after listeners from firing.
+     * @method after
+     * @param {Function} fn The function to execute.
+     * @param {object} context optional execution context.
+     * @param {mixed} arg* 0..n additional arguments to supply to the subscriber
+     * when the event fires.
+     * @return {EventHandle} handle Unsubscribe handle.
+     */
+    after: function(fn, context) {
+        var a = (arguments.length > 2) ? nativeSlice.call(arguments, 2) : null;
+        return this._on(fn, context, a, AFTER);
+    },
+
+    /**
+     * Detach listeners.
+     * @method detach
+     * @param {Function} fn  The subscribed function to remove, if not supplied
+     *                       all will be removed.
+     * @param {Object}   context The context object passed to subscribe.
+     * @return {int} returns the number of subscribers unsubscribed.
+     */
+    detach: function(fn, context) {
+        // unsubscribe handle
+        if (fn && fn.detach) {
+            return fn.detach();
+        }
+
+        var i, s,
+            found = 0,
+            subs = this._subscribers,
+            afters = this._afters;
+
+        if (subs) {
+            for (i = subs.length; i >= 0; i--) {
+                s = subs[i];
+                if (s && (!fn || fn === s.fn)) {
+                    this._delete(s, subs, i);
+                    found++;
+                }
+            }
+        }
+
+        if (afters) {
+            for (i = afters.length; i >= 0; i--) {
+                s = afters[i];
+                if (s && (!fn || fn === s.fn)) {
+                    this._delete(s, afters, i);
+                    found++;
+                }
+            }
+        }
+
+        return found;
+    },
+
+    /**
+     * Detach listeners.
+     * @method unsubscribe
+     * @param {Function} fn  The subscribed function to remove, if not supplied
+     *                       all will be removed.
+     * @param {Object}   context The context object passed to subscribe.
+     * @return {int|undefined} returns the number of subscribers unsubscribed.
+     * @deprecated use detach.
+     */
+    unsubscribe: function() {
+        return this.detach.apply(this, arguments);
+    },
+
+    /**
+     * Notify a single subscriber
+     * @method _notify
+     * @param {Subscriber} s the subscriber.
+     * @param {Array} args the arguments array to apply to the listener.
+     * @protected
+     */
+    _notify: function(s, args, ef) {
+
+
+        var ret;
+
+        ret = s.notify(args, this);
+
+        if (false === ret || this.stopped > 1) {
+            return false;
+        }
+
+        return true;
+    },
+
+    /**
+     * Logger abstraction to centralize the application of the silent flag
+     * @method log
+     * @param {string} msg message to log.
+     * @param {string} cat log category.
+     */
+    log: function(msg, cat) {
+    },
+
+    /**
+     * Notifies the subscribers.  The callback functions will be executed
+     * from the context specified when the event was created, and with the
+     * following parameters:
+     *   <ul>
+     *   <li>The type of event</li>
+     *   <li>All of the arguments fire() was executed with as an array</li>
+     *   <li>The custom object (if any) that was passed into the subscribe()
+     *       method</li>
+     *   </ul>
+     * @method fire
+     * @param {Object*} arguments an arbitrary set of parameters to pass to
+     *                            the handler.
+     * @return {boolean} false if one of the subscribers returned false,
+     *                   true otherwise.
+     *
+     */
+    fire: function() {
+
+        // push is the fastest way to go from arguments to arrays
+        // for most browsers currently
+        // http://jsperf.com/push-vs-concat-vs-slice/2
+
+        var args = [];
+        args.push.apply(args, arguments);
+
+        return this._fire(args);
+    },
+
+    /**
+     * Private internal implementation for `fire`, which is can be used directly by
+     * `EventTarget` and other event module classes which have already converted from
+     * an `arguments` list to an array, to avoid the repeated overhead.
+     *
+     * @method _fire
+     * @private
+     * @param {Array} args The array of arguments passed to be passed to handlers.
+     * @return {boolean} false if one of the subscribers returned false, true otherwise.
+     */
+    _fire: function(args) {
+
+        if (this.fireOnce && this.fired) {
+            return true;
+        } else {
+
+            // this doesn't happen if the event isn't published
+            // this.host._monitor('fire', this.type, args);
+
+            this.fired = true;
+
+            if (this.fireOnce) {
+                this.firedWith = args;
+            }
+
+            if (this.emitFacade) {
+                return this.fireComplex(args);
+            } else {
+                return this.fireSimple(args);
+            }
+        }
+    },
+
+    /**
+     * Set up for notifying subscribers of non-emitFacade events.
+     *
+     * @method fireSimple
+     * @param args {Array} Arguments passed to fire()
+     * @return Boolean false if a subscriber returned false
+     * @protected
+     */
+    fireSimple: function(args) {
+        this.stopped = 0;
+        this.prevented = 0;
+        if (this.hasSubs()) {
+            var subs = this.getSubs();
+            this._procSubs(subs[0], args);
+            this._procSubs(subs[1], args);
+        }
+        if (this.broadcast) {
+            this._broadcast(args);
+        }
+        return this.stopped ? false : true;
+    },
+
+    // Requires the event-custom-complex module for full funcitonality.
+    fireComplex: function(args) {
+        args[0] = args[0] || {};
+        return this.fireSimple(args);
+    },
+
+    /**
+     * Notifies a list of subscribers.
+     *
+     * @method _procSubs
+     * @param subs {Array} List of subscribers
+     * @param args {Array} Arguments passed to fire()
+     * @param ef {}
+     * @return Boolean false if a subscriber returns false or stops the event
+     *              propagation via e.stopPropagation(),
+     *              e.stopImmediatePropagation(), or e.halt()
+     * @private
+     */
+    _procSubs: function(subs, args, ef) {
+        var s, i, l;
+
+        for (i = 0, l = subs.length; i < l; i++) {
+            s = subs[i];
+            if (s && s.fn) {
+                if (false === this._notify(s, args, ef)) {
+                    this.stopped = 2;
+                }
+                if (this.stopped === 2) {
+                    return false;
+                }
+            }
+        }
+
+        return true;
+    },
+
+    /**
+     * Notifies the YUI instance if the event is configured with broadcast = 1,
+     * and both the YUI instance and Y.Global if configured with broadcast = 2.
+     *
+     * @method _broadcast
+     * @param args {Array} Arguments sent to fire()
+     * @private
+     */
+    _broadcast: function(args) {
+        if (!this.stopped && this.broadcast) {
+
+            var a = args.concat();
+            a.unshift(this.type);
+
+            if (this.host !== Y) {
+                Y.fire.apply(Y, a);
+            }
+
+            if (this.broadcast === 2) {
+                Y.Global.fire.apply(Y.Global, a);
+            }
+        }
+    },
+
+    /**
+     * Removes all listeners
+     * @method unsubscribeAll
+     * @return {int} The number of listeners unsubscribed.
+     * @deprecated use detachAll.
+     */
+    unsubscribeAll: function() {
+        return this.detachAll.apply(this, arguments);
+    },
+
+    /**
+     * Removes all listeners
+     * @method detachAll
+     * @return {int} The number of listeners unsubscribed.
+     */
+    detachAll: function() {
+        return this.detach();
+    },
+
+    /**
+     * Deletes the subscriber from the internal store of on() and after()
+     * subscribers.
+     *
+     * @method _delete
+     * @param s subscriber object.
+     * @param subs (optional) on or after subscriber array
+     * @param index (optional) The index found.
+     * @private
+     */
+    _delete: function(s, subs, i) {
+        var when = s._when;
+
+        if (!subs) {
+            subs = (when === AFTER) ? this._afters : this._subscribers;
+        }
+
+        if (subs) {
+            i = YArray.indexOf(subs, s, 0);
+
+            if (s && subs[i] === s) {
+                subs.splice(i, 1);
+
+                if (subs.length === 0) {
+                    if (when === AFTER) {
+                        this._hasAfters = false;
+                    } else {
+                        this._hasSubs = false;
+                    }
+                }
+            }
+        }
+
+        if (this._kds) {
+            if (when === AFTER) {
+                delete this.afters[s.id];
+            } else {
+                delete this.subscribers[s.id];
+            }
+        }
+
+        if (this.monitored && this.host) {
+            this.host._monitor('detach', this, {
+                ce: this,
+                sub: s
+            });
+        }
+
+        if (s) {
+            s.deleted = true;
+        }
+    }
+};
+/**
+ * Stores the subscriber information to be used when the event fires.
+ * @param {Function} fn       The wrapped function to execute.
+ * @param {Object}   context  The value of the keyword 'this' in the listener.
+ * @param {Array} args*       0..n additional arguments to supply the listener.
+ *
+ * @class Subscriber
+ * @constructor
+ */
+Y.Subscriber = function(fn, context, args, when) {
+
+    /**
+     * The callback that will be execute when the event fires
+     * This is wrapped by Y.rbind if obj was supplied.
+     * @property fn
+     * @type Function
+     */
+    this.fn = fn;
+
+    /**
+     * Optional 'this' keyword for the listener
+     * @property context
+     * @type Object
+     */
+    this.context = context;
+
+    /**
+     * Unique subscriber id
+     * @property id
+     * @type String
+     */
+    this.id = Y.guid();
+
+    /**
+     * Additional arguments to propagate to the subscriber
+     * @property args
+     * @type Array
+     */
+    this.args = args;
+
+    this._when = when;
+
+    /**
+     * Custom events for a given fire transaction.
+     * @property events
+     * @type {EventTarget}
+     */
+    // this.events = null;
+
+    /**
+     * This listener only reacts to the event once
+     * @property once
+     */
+    // this.once = false;
+
+};
+
+Y.Subscriber.prototype = {
+    constructor: Y.Subscriber,
+
+    _notify: function(c, args, ce) {
+        if (this.deleted && !this.postponed) {
+            if (this.postponed) {
+                delete this.fn;
+                delete this.context;
+            } else {
+                delete this.postponed;
+                return null;
+            }
+        }
+        var a = this.args, ret;
+        switch (ce.signature) {
+            case 0:
+                ret = this.fn.call(c, ce.type, args, c);
+                break;
+            case 1:
+                ret = this.fn.call(c, args[0] || null, c);
+                break;
+            default:
+                if (a || args) {
+                    args = args || [];
+                    a = (a) ? args.concat(a) : args;
+                    ret = this.fn.apply(c, a);
+                } else {
+                    ret = this.fn.call(c);
+                }
+        }
+
+        if (this.once) {
+            ce._delete(this);
+        }
+
+        return ret;
+    },
+
+    /**
+     * Executes the subscriber.
+     * @method notify
+     * @param args {Array} Arguments array for the subscriber.
+     * @param ce {CustomEvent} The custom event that sent the notification.
+     */
+    notify: function(args, ce) {
+        var c = this.context,
+            ret = true;
+
+        if (!c) {
+            c = (ce.contextFn) ? ce.contextFn() : ce.context;
+        }
+
+        // only catch errors if we will not re-throw them.
+        if (Y.config && Y.config.throwFail) {
+            ret = this._notify(c, args, ce);
+        } else {
+            try {
+                ret = this._notify(c, args, ce);
+            } catch (e) {
+                Y.error(this + ' failed: ' + e.message, e);
+            }
+        }
+
+        return ret;
+    },
+
+    /**
+     * Returns true if the fn and obj match this objects properties.
+     * Used by the unsubscribe method to match the right subscriber.
+     *
+     * @method contains
+     * @param {Function} fn the function to execute.
+     * @param {Object} context optional 'this' keyword for the listener.
+     * @return {boolean} true if the supplied arguments match this
+     *                   subscriber's signature.
+     */
+    contains: function(fn, context) {
+        if (context) {
+            return ((this.fn === fn) && this.context === context);
+        } else {
+            return (this.fn === fn);
+        }
+    },
+
+    valueOf : function() {
+        return this.id;
+    }
+
+};
+/**
+ * Return value from all subscribe operations
+ * @class EventHandle
+ * @constructor
+ * @param {CustomEvent} evt the custom event.
+ * @param {Subscriber} sub the subscriber.
+ */
+Y.EventHandle = function(evt, sub) {
+
+    /**
+     * The custom event
+     *
+     * @property evt
+     * @type CustomEvent
+     */
+    this.evt = evt;
+
+    /**
+     * The subscriber object
+     *
+     * @property sub
+     * @type Subscriber
+     */
+    this.sub = sub;
+};
+
+Y.EventHandle.prototype = {
+    batch: function(f, c) {
+        f.call(c || this, this);
+        if (Y.Lang.isArray(this.evt)) {
+            Y.Array.each(this.evt, function(h) {
+                h.batch.call(c || h, f);
+            });
+        }
+    },
+
+    /**
+     * Detaches this subscriber
+     * @method detach
+     * @return {int} the number of detached listeners
+     */
+    detach: function() {
+        var evt = this.evt, detached = 0, i;
+        if (evt) {
+            if (Y.Lang.isArray(evt)) {
+                for (i = 0; i < evt.length; i++) {
+                    detached += evt[i].detach();
+                }
+            } else {
+                evt._delete(this.sub);
+                detached = 1;
+            }
+
+        }
+
+        return detached;
+    },
+
+    /**
+     * Monitor the event state for the subscribed event.  The first parameter
+     * is what should be monitored, the rest are the normal parameters when
+     * subscribing to an event.
+     * @method monitor
+     * @param what {string} what to monitor ('attach', 'detach', 'publish').
+     * @return {EventHandle} return value from the monitor event subscription.
+     */
+    monitor: function(what) {
+        return this.evt.monitor.apply(this.evt, arguments);
+    }
+};
+
+/**
+ * Custom event engine, DOM event listener abstraction layer, synthetic DOM
+ * events.
+ * @module event-custom
+ * @submodule event-custom-base
+ */
+
+/**
+ * EventTarget provides the implementation for any object to
+ * publish, subscribe and fire to custom events, and also
+ * alows other EventTargets to target the object with events
+ * sourced from the other object.
+ * EventTarget is designed to be used with Y.augment to wrap
+ * EventCustom in an interface that allows events to be listened to
+ * and fired by name.  This makes it possible for implementing code to
+ * subscribe to an event that either has not been created yet, or will
+ * not be created at all.
+ * @class EventTarget
+ * @param opts a configuration object
+ * @config emitFacade {boolean} if true, all events will emit event
+ * facade payloads by default (default false)
+ * @config prefix {String} the prefix to apply to non-prefixed event names
+ */
+
+var L = Y.Lang,
+    PREFIX_DELIMITER = ':',
+    CATEGORY_DELIMITER = '|',
+    AFTER_PREFIX = '~AFTER~',
+    WILD_TYPE_RE = /(.*?)(:)(.*?)/,
+
+    _wildType = Y.cached(function(type) {
+        return type.replace(WILD_TYPE_RE, "*$2$3");
+    }),
+
+    /**
+     * If the instance has a prefix attribute and the
+     * event type is not prefixed, the instance prefix is
+     * applied to the supplied type.
+     * @method _getType
+     * @private
+     */
+    _getType = function(type, pre) {
+
+        if (!pre || type.indexOf(PREFIX_DELIMITER) > -1) {
+            return type;
+        }
+
+        return pre + PREFIX_DELIMITER + type;
+    },
+
+    /**
+     * Returns an array with the detach key (if provided),
+     * and the prefixed event name from _getType
+     * Y.on('detachcategory| menu:click', fn)
+     * @method _parseType
+     * @private
+     */
+    _parseType = Y.cached(function(type, pre) {
+
+        var t = type, detachcategory, after, i;
+
+        if (!L.isString(t)) {
+            return t;
+        }
+
+        i = t.indexOf(AFTER_PREFIX);
+
+        if (i > -1) {
+            after = true;
+            t = t.substr(AFTER_PREFIX.length);
+        }
+
+        i = t.indexOf(CATEGORY_DELIMITER);
+
+        if (i > -1) {
+            detachcategory = t.substr(0, (i));
+            t = t.substr(i+1);
+            if (t === '*') {
+                t = null;
+            }
+        }
+
+        // detach category, full type with instance prefix, is this an after listener, short type
+        return [detachcategory, (pre) ? _getType(t, pre) : t, after, t];
+    }),
+
+    ET = function(opts) {
+
+        var etState = this._yuievt,
+            etConfig;
+
+        if (!etState) {
+            etState = this._yuievt = {
+                events: {},    // PERF: Not much point instantiating lazily. We're bound to have events
+                targets: null, // PERF: Instantiate lazily, if user actually adds target,
+                config: {
+                    host: this,
+                    context: this
+                },
+                chain: Y.config.chain
+            };
+        }
+
+        etConfig = etState.config;
+
+        if (opts) {
+            mixConfigs(etConfig, opts, true);
+
+            if (opts.chain !== undefined) {
+                etState.chain = opts.chain;
+            }
+
+            if (opts.prefix) {
+                etConfig.prefix = opts.prefix;
+            }
+        }
+    };
+
+ET.prototype = {
+
+    constructor: ET,
+
+    /**
+     * Listen to a custom event hosted by this object one time.
+     * This is the equivalent to <code>on</code> except the
+     * listener is immediatelly detached when it is executed.
+     * @method once
+     * @param {String} type The name of the event
+     * @param {Function} fn The callback to execute in response to the event
+     * @param {Object} [context] Override `this` object in callback
+     * @param {Any} [arg*] 0..n additional arguments to supply to the subscriber
+     * @return {EventHandle} A subscription handle capable of detaching the
+     *                       subscription
+     */
+    once: function() {
+        var handle = this.on.apply(this, arguments);
+        handle.batch(function(hand) {
+            if (hand.sub) {
+                hand.sub.once = true;
+            }
+        });
+        return handle;
+    },
+
+    /**
+     * Listen to a custom event hosted by this object one time.
+     * This is the equivalent to <code>after</code> except the
+     * listener is immediatelly detached when it is executed.
+     * @method onceAfter
+     * @param {String} type The name of the event
+     * @param {Function} fn The callback to execute in response to the event
+     * @param {Object} [context] Override `this` object in callback
+     * @param {Any} [arg*] 0..n additional arguments to supply to the subscriber
+     * @return {EventHandle} A subscription handle capable of detaching that
+     *                       subscription
+     */
+    onceAfter: function() {
+        var handle = this.after.apply(this, arguments);
+        handle.batch(function(hand) {
+            if (hand.sub) {
+                hand.sub.once = true;
+            }
+        });
+        return handle;
+    },
+
+    /**
+     * Takes the type parameter passed to 'on' and parses out the
+     * various pieces that could be included in the type.  If the
+     * event type is passed without a prefix, it will be expanded
+     * to include the prefix one is supplied or the event target
+     * is configured with a default prefix.
+     * @method parseType
+     * @param {String} type the type
+     * @param {String} [pre=this._yuievt.config.prefix] the prefix
+     * @since 3.3.0
+     * @return {Array} an array containing:
+     *  * the detach category, if supplied,
+     *  * the prefixed event type,
+     *  * whether or not this is an after listener,
+     *  * the supplied event type
+     */
+    parseType: function(type, pre) {
+        return _parseType(type, pre || this._yuievt.config.prefix);
+    },
+
+    /**
+     * Subscribe a callback function to a custom event fired by this object or
+     * from an object that bubbles its events to this object.
+     *
+     * Callback functions for events published with `emitFacade = true` will
+     * receive an `EventFacade` as the first argument (typically named "e").
+     * These callbacks can then call `e.preventDefault()` to disable the
+     * behavior published to that event's `defaultFn`.  See the `EventFacade`
+     * API for all available properties and methods. Subscribers to
+     * non-`emitFacade` events will receive the arguments passed to `fire()`
+     * after the event name.
+     *
+     * To subscribe to multiple events at once, pass an object as the first
+     * argument, where the key:value pairs correspond to the eventName:callback,
+     * or pass an array of event names as the first argument to subscribe to
+     * all listed events with the same callback.
+     *
+     * Returning `false` from a callback is supported as an alternative to
+     * calling `e.preventDefault(); e.stopPropagation();`.  However, it is
+     * recommended to use the event methods whenever possible.
+     *
+     * @method on
+     * @param {String} type The name of the event
+     * @param {Function} fn The callback to execute in response to the event
+     * @param {Object} [context] Override `this` object in callback
+     * @param {Any} [arg*] 0..n additional arguments to supply to the subscriber
+     * @return {EventHandle} A subscription handle capable of detaching that
+     *                       subscription
+     */
+    on: function(type, fn, context) {
+
+        var yuievt = this._yuievt,
+            parts = _parseType(type, yuievt.config.prefix), f, c, args, ret, ce,
+            detachcategory, handle, store = Y.Env.evt.handles, after, adapt, shorttype,
+            Node = Y.Node, n, domevent, isArr;
+
+        // full name, args, detachcategory, after
+        this._monitor('attach', parts[1], {
+            args: arguments,
+            category: parts[0],
+            after: parts[2]
+        });
+
+        if (L.isObject(type)) {
+
+            if (L.isFunction(type)) {
+                return Y.Do.before.apply(Y.Do, arguments);
+            }
+
+            f = fn;
+            c = context;
+            args = nativeSlice.call(arguments, 0);
+            ret = [];
+
+            if (L.isArray(type)) {
+                isArr = true;
+            }
+
+            after = type._after;
+            delete type._after;
+
+            Y.each(type, function(v, k) {
+
+                if (L.isObject(v)) {
+                    f = v.fn || ((L.isFunction(v)) ? v : f);
+                    c = v.context || c;
+                }
+
+                var nv = (after) ? AFTER_PREFIX : '';
+
+                args[0] = nv + ((isArr) ? v : k);
+                args[1] = f;
+                args[2] = c;
+
+                ret.push(this.on.apply(this, args));
+
+            }, this);
+
+            return (yuievt.chain) ? this : new Y.EventHandle(ret);
+        }
+
+        detachcategory = parts[0];
+        after = parts[2];
+        shorttype = parts[3];
+
+        // extra redirection so we catch adaptor events too.  take a look at this.
+        if (Node && Y.instanceOf(this, Node) && (shorttype in Node.DOM_EVENTS)) {
+            args = nativeSlice.call(arguments, 0);
+            args.splice(2, 0, Node.getDOMNode(this));
+            return Y.on.apply(Y, args);
+        }
+
+        type = parts[1];
+
+        if (Y.instanceOf(this, YUI)) {
+
+            adapt = Y.Env.evt.plugins[type];
+            args  = nativeSlice.call(arguments, 0);
+            args[0] = shorttype;
+
+            if (Node) {
+                n = args[2];
+
+                if (Y.instanceOf(n, Y.NodeList)) {
+                    n = Y.NodeList.getDOMNodes(n);
+                } else if (Y.instanceOf(n, Node)) {
+                    n = Node.getDOMNode(n);
+                }
+
+                domevent = (shorttype in Node.DOM_EVENTS);
+
+                // Captures both DOM events and event plugins.
+                if (domevent) {
+                    args[2] = n;
+                }
+            }
+
+            // check for the existance of an event adaptor
+            if (adapt) {
+                handle = adapt.on.apply(Y, args);
+            } else if ((!type) || domevent) {
+                handle = Y.Event._attach(args);
+            }
+
+        }
+
+        if (!handle) {
+            ce = yuievt.events[type] || this.publish(type);
+            handle = ce._on(fn, context, (arguments.length > 3) ? nativeSlice.call(arguments, 3) : null, (after) ? 'after' : true);
+
+            // TODO: More robust regex, accounting for category
+            if (type.indexOf("*:") !== -1) {
+                this._hasSiblings = true;
+            }
+        }
+
+        if (detachcategory) {
+            store[detachcategory] = store[detachcategory] || {};
+            store[detachcategory][type] = store[detachcategory][type] || [];
+            store[detachcategory][type].push(handle);
+        }
+
+        return (yuievt.chain) ? this : handle;
+
+    },
+
+    /**
+     * subscribe to an event
+     * @method subscribe
+     * @deprecated use on
+     */
+    subscribe: function() {
+        return this.on.apply(this, arguments);
+    },
+
+    /**
+     * Detach one or more listeners the from the specified event
+     * @method detach
+     * @param type {string|Object}   Either the handle to the subscriber or the
+     *                        type of event.  If the type
+     *                        is not specified, it will attempt to remove
+     *                        the listener from all hosted events.
+     * @param fn   {Function} The subscribed function to unsubscribe, if not
+     *                          supplied, all subscribers will be removed.
+     * @param context  {Object}   The custom object passed to subscribe.  This is
+     *                        optional, but if supplied will be used to
+     *                        disambiguate multiple listeners that are the same
+     *                        (e.g., you subscribe many object using a function
+     *                        that lives on the prototype)
+     * @return {EventTarget} the host
+     */
+    detach: function(type, fn, context) {
+
+        var evts = this._yuievt.events,
+            i,
+            Node = Y.Node,
+            isNode = Node && (Y.instanceOf(this, Node));
+
+        // detachAll disabled on the Y instance.
+        if (!type && (this !== Y)) {
+            for (i in evts) {
+                if (evts.hasOwnProperty(i)) {
+                    evts[i].detach(fn, context);
+                }
+            }
+            if (isNode) {
+                Y.Event.purgeElement(Node.getDOMNode(this));
+            }
+
+            return this;
+        }
+
+        var parts = _parseType(type, this._yuievt.config.prefix),
+        detachcategory = L.isArray(parts) ? parts[0] : null,
+        shorttype = (parts) ? parts[3] : null,
+        adapt, store = Y.Env.evt.handles, detachhost, cat, args,
+        ce,
+
+        keyDetacher = function(lcat, ltype, host) {
+            var handles = lcat[ltype], ce, i;
+            if (handles) {
+                for (i = handles.length - 1; i >= 0; --i) {
+                    ce = handles[i].evt;
+                    if (ce.host === host || ce.el === host) {
+                        handles[i].detach();
+                    }
+                }
+            }
+        };
+
+        if (detachcategory) {
+
+            cat = store[detachcategory];
+            type = parts[1];
+            detachhost = (isNode) ? Y.Node.getDOMNode(this) : this;
+
+            if (cat) {
+                if (type) {
+                    keyDetacher(cat, type, detachhost);
+                } else {
+                    for (i in cat) {
+                        if (cat.hasOwnProperty(i)) {
+                            keyDetacher(cat, i, detachhost);
+                        }
+                    }
+                }
+
+                return this;
+            }
+
+        // If this is an event handle, use it to detach
+        } else if (L.isObject(type) && type.detach) {
+            type.detach();
+            return this;
+        // extra redirection so we catch adaptor events too.  take a look at this.
+        } else if (isNode && ((!shorttype) || (shorttype in Node.DOM_EVENTS))) {
+            args = nativeSlice.call(arguments, 0);
+            args[2] = Node.getDOMNode(this);
+            Y.detach.apply(Y, args);
+            return this;
+        }
+
+        adapt = Y.Env.evt.plugins[shorttype];
+
+        // The YUI instance handles DOM events and adaptors
+        if (Y.instanceOf(this, YUI)) {
+            args = nativeSlice.call(arguments, 0);
+            // use the adaptor specific detach code if
+            if (adapt && adapt.detach) {
+                adapt.detach.apply(Y, args);
+                return this;
+            // DOM event fork
+            } else if (!type || (!adapt && Node && (type in Node.DOM_EVENTS))) {
+                args[0] = type;
+                Y.Event.detach.apply(Y.Event, args);
+                return this;
+            }
+        }
+
+        // ce = evts[type];
+        ce = evts[parts[1]];
+        if (ce) {
+            ce.detach(fn, context);
+        }
+
+        return this;
+    },
+
+    /**
+     * detach a listener
+     * @method unsubscribe
+     * @deprecated use detach
+     */
+    unsubscribe: function() {
+        return this.detach.apply(this, arguments);
+    },
+
+    /**
+     * Removes all listeners from the specified event.  If the event type
+     * is not specified, all listeners from all hosted custom events will
+     * be removed.
+     * @method detachAll
+     * @param type {String}   The type, or name of the event
+     */
+    detachAll: function(type) {
+        return this.detach(type);
+    },
+
+    /**
+     * Removes all listeners from the specified event.  If the event type
+     * is not specified, all listeners from all hosted custom events will
+     * be removed.
+     * @method unsubscribeAll
+     * @param type {String}   The type, or name of the event
+     * @deprecated use detachAll
+     */
+    unsubscribeAll: function() {
+        return this.detachAll.apply(this, arguments);
+    },
+
+    /**
+     * Creates a new custom event of the specified type.  If a custom event
+     * by that name already exists, it will not be re-created.  In either
+     * case the custom event is returned.
+     *
+     * @method publish
+     *
+     * @param type {String} the type, or name of the event
+     * @param opts {object} optional config params.  Valid properties are:
+     *
+     *  <ul>
+     *    <li>
+     *   'broadcast': whether or not the YUI instance and YUI global are notified when the event is fired (false)
+     *    </li>
+     *    <li>
+     *   'bubbles': whether or not this event bubbles (true)
+     *              Events can only bubble if emitFacade is true.
+     *    </li>
+     *    <li>
+     *   'context': the default execution context for the listeners (this)
+     *    </li>
+     *    <li>
+     *   'defaultFn': the default function to execute when this event fires if preventDefault was not called
+     *    </li>
+     *    <li>
+     *   'emitFacade': whether or not this event emits a facade (false)
+     *    </li>
+     *    <li>
+     *   'prefix': the prefix for this targets events, e.g., 'menu' in 'menu:click'
+     *    </li>
+     *    <li>
+     *   'fireOnce': if an event is configured to fire once, new subscribers after
+     *   the fire will be notified immediately.
+     *    </li>
+     *    <li>
+     *   'async': fireOnce event listeners will fire synchronously if the event has already
+     *    fired unless async is true.
+     *    </li>
+     *    <li>
+     *   'preventable': whether or not preventDefault() has an effect (true)
+     *    </li>
+     *    <li>
+     *   'preventedFn': a function that is executed when preventDefault is called
+     *    </li>
+     *    <li>
+     *   'queuable': whether or not this event can be queued during bubbling (false)
+     *    </li>
+     *    <li>
+     *   'silent': if silent is true, debug messages are not provided for this event.
+     *    </li>
+     *    <li>
+     *   'stoppedFn': a function that is executed when stopPropagation is called
+     *    </li>
+     *
+     *    <li>
+     *   'monitored': specifies whether or not this event should send notifications about
+     *   when the event has been attached, detached, or published.
+     *    </li>
+     *    <li>
+     *   'type': the event type (valid option if not provided as the first parameter to publish)
+     *    </li>
+     *  </ul>
+     *
+     *  @return {CustomEvent} the custom event
+     *
+     */
+    publish: function(type, opts) {
+
+        var ret,
+            etState = this._yuievt,
+            etConfig = etState.config,
+            pre = etConfig.prefix;
+
+        if (typeof type === "string")  {
+            if (pre) {
+                type = _getType(type, pre);
+            }
+            ret = this._publish(type, etConfig, opts);
+        } else {
+            ret = {};
+
+            Y.each(type, function(v, k) {
+                if (pre) {
+                    k = _getType(k, pre);
+                }
+                ret[k] = this._publish(k, etConfig, v || opts);
+            }, this);
+
+        }
+
+        return ret;
+    },
+
+    /**
+     * Returns the fully qualified type, given a short type string.
+     * That is, returns "foo:bar" when given "bar" if "foo" is the configured prefix.
+     *
+     * NOTE: This method, unlike _getType, does no checking of the value passed in, and
+     * is designed to be used with the low level _publish() method, for critical path
+     * implementations which need to fast-track publish for performance reasons.
+     *
+     * @method _getFullType
+     * @private
+     * @param {String} type The short type to prefix
+     * @return {String} The prefixed type, if a prefix is set, otherwise the type passed in
+     */
+    _getFullType : function(type) {
+
+        var pre = this._yuievt.config.prefix;
+
+        if (pre) {
+            return pre + PREFIX_DELIMITER + type;
+        } else {
+            return type;
+        }
+    },
+
+    /**
+     * The low level event publish implementation. It expects all the massaging to have been done
+     * outside of this method. e.g. the `type` to `fullType` conversion. It's designed to be a fast
+     * path publish, which can be used by critical code paths to improve performance.
+     *
+     * @method _publish
+     * @private
+     * @param {String} fullType The prefixed type of the event to publish.
+     * @param {Object} etOpts The EventTarget specific configuration to mix into the published event.
+     * @param {Object} ceOpts The publish specific configuration to mix into the published event.
+     * @return {CustomEvent} The published event. If called without `etOpts` or `ceOpts`, this will
+     * be the default `CustomEvent` instance, and can be configured independently.
+     */
+    _publish : function(fullType, etOpts, ceOpts) {
+
+        var ce,
+            etState = this._yuievt,
+            etConfig = etState.config,
+            host = etConfig.host,
+            context = etConfig.context,
+            events = etState.events;
+
+        ce = events[fullType];
+
+        // PERF: Hate to pull the check out of monitor, but trying to keep critical path tight.
+        if ((etConfig.monitored && !ce) || (ce && ce.monitored)) {
+            this._monitor('publish', fullType, {
+                args: arguments
+            });
+        }
+
+        if (!ce) {
+            // Publish event
+            ce = events[fullType] = new Y.CustomEvent(fullType, etOpts);
+
+            if (!etOpts) {
+                ce.host = host;
+                ce.context = context;
+            }
+        }
+
+        if (ceOpts) {
+            mixConfigs(ce, ceOpts, true);
+        }
+
+        return ce;
+    },
+
+    /**
+     * This is the entry point for the event monitoring system.
+     * You can monitor 'attach', 'detach', 'fire', and 'publish'.
+     * When configured, these events generate an event.  click ->
+     * click_attach, click_detach, click_publish -- these can
+     * be subscribed to like other events to monitor the event
+     * system.  Inividual published events can have monitoring
+     * turned on or off (publish can't be turned off before it
+     * it published) by setting the events 'monitor' config.
+     *
+     * @method _monitor
+     * @param what {String} 'attach', 'detach', 'fire', or 'publish'
+     * @param eventType {String|CustomEvent} The prefixed name of the event being monitored, or the CustomEvent object.
+     * @param o {Object} Information about the event interaction, such as
+     *                  fire() args, subscription category, publish config
+     * @private
+     */
+    _monitor: function(what, eventType, o) {
+        var monitorevt, ce, type;
+
+        if (eventType) {
+            if (typeof eventType === "string") {
+                type = eventType;
+                ce = this.getEvent(eventType, true);
+            } else {
+                ce = eventType;
+                type = eventType.type;
+            }
+
+            if ((this._yuievt.config.monitored && (!ce || ce.monitored)) || (ce && ce.monitored)) {
+                monitorevt = type + '_' + what;
+                o.monitored = what;
+                this.fire.call(this, monitorevt, o);
+            }
+        }
+    },
+
+    /**
+     * Fire a custom event by name.  The callback functions will be executed
+     * from the context specified when the event was created, and with the
+     * following parameters.
+     *
+     * If the custom event object hasn't been created, then the event hasn't
+     * been published and it has no subscribers.  For performance sake, we
+     * immediate exit in this case.  This means the event won't bubble, so
+     * if the intention is that a bubble target be notified, the event must
+     * be published on this object first.
+     *
+     * The first argument is the event type, and any additional arguments are
+     * passed to the listeners as parameters.  If the first of these is an
+     * object literal, and the event is configured to emit an event facade,
+     * that object is mixed into the event facade and the facade is provided
+     * in place of the original object.
+     *
+     * @method fire
+     * @param type {String|Object} The type of the event, or an object that contains
+     * a 'type' property.
+     * @param arguments {Object*} an arbitrary set of parameters to pass to
+     * the handler.  If the first of these is an object literal and the event is
+     * configured to emit an event facade, the event facade will replace that
+     * parameter after the properties the object literal contains are copied to
+     * the event facade.
+     * @return {EventTarget} the event host
+     */
+    fire: function(type) {
+
+        var typeIncluded = (typeof type === "string"),
+            argCount = arguments.length,
+            t = type,
+            yuievt = this._yuievt,
+            etConfig = yuievt.config,
+            pre = etConfig.prefix,
+            ret,
+            ce,
+            ce2,
+            args;
+
+        if (typeIncluded && argCount <= 3) {
+
+            // PERF: Try to avoid slice/iteration for the common signatures
+
+            // Most common
+            if (argCount === 2) {
+                args = [arguments[1]]; // fire("foo", {})
+            } else if (argCount === 3) {
+                args = [arguments[1], arguments[2]]; // fire("foo", {}, opts)
+            } else {
+                args = []; // fire("foo")
+            }
+
+        } else {
+            args = nativeSlice.call(arguments, ((typeIncluded) ? 1 : 0));
+        }
+
+        if (!typeIncluded) {
+            t = (type && type.type);
+        }
+
+        if (pre) {
+            t = _getType(t, pre);
+        }
+
+        ce = yuievt.events[t];
+
+        if (this._hasSiblings) {
+            ce2 = this.getSibling(t, ce);
+
+            if (ce2 && !ce) {
+                ce = this.publish(t);
+            }
+        }
+
+        // PERF: trying to avoid function call, since this is a critical path
+        if ((etConfig.monitored && (!ce || ce.monitored)) || (ce && ce.monitored)) {
+            this._monitor('fire', (ce || t), {
+                args: args
+            });
+        }
+
+        // this event has not been published or subscribed to
+        if (!ce) {
+            if (yuievt.hasTargets) {
+                return this.bubble({ type: t }, args, this);
+            }
+
+            // otherwise there is nothing to be done
+            ret = true;
+        } else {
+
+            if (ce2) {
+                ce.sibling = ce2;
+            }
+
+            ret = ce._fire(args);
+        }
+
+        return (yuievt.chain) ? this : ret;
+    },
+
+    getSibling: function(type, ce) {
+        var ce2;
+
+        // delegate to *:type events if there are subscribers
+        if (type.indexOf(PREFIX_DELIMITER) > -1) {
+            type = _wildType(type);
+            ce2 = this.getEvent(type, true);
+            if (ce2) {
+                ce2.applyConfig(ce);
+                ce2.bubbles = false;
+                ce2.broadcast = 0;
+            }
+        }
+
+        return ce2;
+    },
+
+    /**
+     * Returns the custom event of the provided type has been created, a
+     * falsy value otherwise
+     * @method getEvent
+     * @param type {String} the type, or name of the event
+     * @param prefixed {String} if true, the type is prefixed already
+     * @return {CustomEvent} the custom event or null
+     */
+    getEvent: function(type, prefixed) {
+        var pre, e;
+
+        if (!prefixed) {
+            pre = this._yuievt.config.prefix;
+            type = (pre) ? _getType(type, pre) : type;
+        }
+        e = this._yuievt.events;
+        return e[type] || null;
+    },
+
+    /**
+     * Subscribe to a custom event hosted by this object.  The
+     * supplied callback will execute after any listeners add
+     * via the subscribe method, and after the default function,
+     * if configured for the event, has executed.
+     *
+     * @method after
+     * @param {String} type The name of the event
+     * @param {Function} fn The callback to execute in response to the event
+     * @param {Object} [context] Override `this` object in callback
+     * @param {Any} [arg*] 0..n additional arguments to supply to the subscriber
+     * @return {EventHandle} A subscription handle capable of detaching the
+     *                       subscription
+     */
+    after: function(type, fn) {
+
+        var a = nativeSlice.call(arguments, 0);
+
+        switch (L.type(type)) {
+            case 'function':
+                return Y.Do.after.apply(Y.Do, arguments);
+            case 'array':
+            //     YArray.each(a[0], function(v) {
+            //         v = AFTER_PREFIX + v;
+            //     });
+            //     break;
+            case 'object':
+                a[0]._after = true;
+                break;
+            default:
+                a[0] = AFTER_PREFIX + type;
+        }
+
+        return this.on.apply(this, a);
+
+    },
+
+    /**
+     * Executes the callback before a DOM event, custom event
+     * or method.  If the first argument is a function, it
+     * is assumed the target is a method.  For DOM and custom
+     * events, this is an alias for Y.on.
+     *
+     * For DOM and custom events:
+     * type, callback, context, 0-n arguments
+     *
+     * For methods:
+     * callback, object (method host), methodName, context, 0-n arguments
+     *
+     * @method before
+     * @return detach handle
+     */
+    before: function() {
+        return this.on.apply(this, arguments);
+    }
+
+};
+
+Y.EventTarget = ET;
+
+// make Y an event target
+Y.mix(Y, ET.prototype);
+ET.call(Y, { bubbles: false });
+
+YUI.Env.globalEvents = YUI.Env.globalEvents || new ET();
+
+/**
+ * Hosts YUI page level events.  This is where events bubble to
+ * when the broadcast config is set to 2.  This property is
+ * only available if the custom event module is loaded.
+ * @property Global
+ * @type EventTarget
+ * @for YUI
+ */
+Y.Global = YUI.Env.globalEvents;
+
+// @TODO implement a global namespace function on Y.Global?
+
+/**
+`Y.on()` can do many things:
+
+<ul>
+    <li>Subscribe to custom events `publish`ed and `fire`d from Y</li>
+    <li>Subscribe to custom events `publish`ed with `broadcast` 1 or 2 and
+        `fire`d from any object in the YUI instance sandbox</li>
+    <li>Subscribe to DOM events</li>
+    <li>Subscribe to the execution of a method on any object, effectively
+    treating that method as an event</li>
+</ul>
+
+For custom event subscriptions, pass the custom event name as the first argument
+and callback as the second. The `this` object in the callback will be `Y` unless
+an override is passed as the third argument.
+
+    Y.on('io:complete', function () {
+        Y.MyApp.updateStatus('Transaction complete');
+    });
+
+To subscribe to DOM events, pass the name of a DOM event as the first argument
+and a CSS selector string as the third argument after the callback function.
+Alternately, the third argument can be a `Node`, `NodeList`, `HTMLElement`,
+array, or simply omitted (the default is the `window` object).
+
+    Y.on('click', function (e) {
+        e.preventDefault();
+
+        // proceed with ajax form submission
+        var url = this.get('action');
+        ...
+    }, '#my-form');
+
+The `this` object in DOM event callbacks will be the `Node` targeted by the CSS
+selector or other identifier.
+
+`on()` subscribers for DOM events or custom events `publish`ed with a
+`defaultFn` can prevent the default behavior with `e.preventDefault()` from the
+event object passed as the first parameter to the subscription callback.
+
+To subscribe to the execution of an object method, pass arguments corresponding to the call signature for
+<a href="../classes/Do.html#methods_before">`Y.Do.before(...)`</a>.
+
+NOTE: The formal parameter list below is for events, not for function
+injection.  See `Y.Do.before` for that signature.
+
+@method on
+@param {String} type DOM or custom event name
+@param {Function} fn The callback to execute in response to the event
+@param {Object} [context] Override `this` object in callback
+@param {Any} [arg*] 0..n additional arguments to supply to the subscriber
+@return {EventHandle} A subscription handle capable of detaching the
+                      subscription
+@see Do.before
+@for YUI
+**/
+
+/**
+Listen for an event one time.  Equivalent to `on()`, except that
+the listener is immediately detached when executed.
+
+See the <a href="#methods_on">`on()` method</a> for additional subscription
+options.
+
+@see on
+@method once
+@param {String} type DOM or custom event name
+@param {Function} fn The callback to execute in response to the event
+@param {Object} [context] Override `this` object in callback
+@param {Any} [arg*] 0..n additional arguments to supply to the subscriber
+@return {EventHandle} A subscription handle capable of detaching the
+                      subscription
+@for YUI
+**/
+
+/**
+Listen for an event one time.  Equivalent to `once()`, except, like `after()`,
+the subscription callback executes after all `on()` subscribers and the event's
+`defaultFn` (if configured) have executed.  Like `after()` if any `on()` phase
+subscriber calls `e.preventDefault()`, neither the `defaultFn` nor the `after()`
+subscribers will execute.
+
+The listener is immediately detached when executed.
+
+See the <a href="#methods_on">`on()` method</a> for additional subscription
+options.
+
+@see once
+@method onceAfter
+@param {String} type The custom event name
+@param {Function} fn The callback to execute in response to the event
+@param {Object} [context] Override `this` object in callback
+@param {Any} [arg*] 0..n additional arguments to supply to the subscriber
+@return {EventHandle} A subscription handle capable of detaching the
+                      subscription
+@for YUI
+**/
+
+/**
+Like `on()`, this method creates a subscription to a custom event or to the
+execution of a method on an object.
+
+For events, `after()` subscribers are executed after the event's
+`defaultFn` unless `e.preventDefault()` was called from an `on()` subscriber.
+
+See the <a href="#methods_on">`on()` method</a> for additional subscription
+options.
+
+NOTE: The subscription signature shown is for events, not for function
+injection.  See <a href="../classes/Do.html#methods_after">`Y.Do.after`</a>
+for that signature.
+
+@see on
+@see Do.after
+@method after
+@param {String} type The custom event name
+@param {Function} fn The callback to execute in response to the event
+@param {Object} [context] Override `this` object in callback
+@param {Any} [args*] 0..n additional arguments to supply to the subscriber
+@return {EventHandle} A subscription handle capable of detaching the
+                      subscription
+@for YUI
+**/
+
+
+}, '3.10.3', {"requires": ["oop"]});