/*@cc_on if (window.addEventListener) { @*/
	function addEvent (o, type, fn) {
		o.addEventListener (type, fn, false);
	}
	function removeEvent (o, type, fn) {
		o.removeEventListener (type, fn, false);
	}
/*@ } else if (window.attachEvent) {
	function addEvent (o, type, fn) {
		if (!o._events) o._events = {};
		var queue = o._events[type];
		if (!queue) {
			o._events[type] = [fn];
			if (!o._events._callback)
				o._events._callback = function (e) { Event._callListeners (e, o) };
			o.attachEvent ('on' + type, o._events._callback);
		} else if (Event._fnIndex (o, type, fn) == -1)
			queue[queue.length] = fn;
		else return;
		Event._mem[Event._mem.length] = [o, type, fn];
	}
	function removeEvent (o, type, fn) {
		var i = Event._fnIndex (o, type, fn);
		if (i < 0) return;
		var queue = o._events[type];
		if (queue.calling) {
			delete queue[i];
			if (queue.removeListeners)
				queue.removeListeners[queue.removeListeners.length] = i;
			else
				queue.removeListeners = [i];
		} else
			if (queue.length == 1)
				Event._detach (o, type);
			else
				queue.splice (i, 1);
	}
    var Event = {
		AT_TARGET : 2,
		BUBBLING_PHASE : 3,
		stopPropagation : function() { this.cancelBubble = true },
		preventDefault : function() { this.returnValue = false },
		_mem : [],
		_callListeners : function (e, o) {
			e.stopPropagation = Event.stopPropagation;
			e.preventDefault = Event.preventDefault;
			e.currentTarget = o;
			e.target = e.srcElement;
			e.eventPhase = e.currentTarget == e.target ? Event.AT_TARGET : Event.BUBBLING_PHASE;
			var queue = o._events[e.type];
			queue.calling = true;
			for (var i=0, l = queue.length; i < l; i++)
				if (queue[i])
					queue[i].call(o,e);
			queue.calling = null;
			if (!queue.removeListeners)
				return;
			if (queue.length == queue.removeListeners.length) {
				Event._detach (o, e.type);
				return;
			}
			queue.removeListeners = queue.removeListeners.sort(function(a,b){return a-b});
			var i = queue.removeListeners.length;
			while (i--)
				queue.splice (queue.removeListeners[i], 1);
			if (queue.length == 0)
				Event._detach (o, e.type);
			else
				queue.removeListeners = null;
		},
		_detach : function (o, type) {
			o.detachEvent ('on' + type, o._events._callback);
			delete o._events[type];
		},
		_fnIndex : function (o, type, fn) {
			var queue = o._events[type];
			if (queue)
				for (var i=0, l = queue.length; i < l; i++)
					if (queue[i] == fn)
						return i;
			return -1;
		},
		_cleanup : function() {
			for (var m, i=0; m = Event._mem[i]; i++)
				if (m[1] != 'unload' || m[2] == Event._cleanup)
					removeEvent (m[0], m[1], m[2]);
		}
	};
	addEvent (window, 'unload', Event._cleanup);
} @*/