阻止冒泡小问题

function stopPropagation(){

		var e = arguments.callee.caller.arguments[0]  || window.event;

		if(e.stopPropagation){

			e.stopPropagation();

		}else{

			e.cancelBubble = true;

		}

	}

定义一个阻止冒泡的方法，在

showFavorite.prototype = {

		showLevelOne: function(){

			stopPropagation();

			if($('#menu').css('display') == 'block'){

				$('#menu').animate({width: "0", height: this.constractHeight, opacity: '0'}, 300, this.allHide);

			}else{

				createMask();

				$('#menu').show().animate({width: this.menuWidth, height: this.menuHeight, opacity:'1'},300);

				menuTop = $("#menu").offset().top;

			}

这个方法中调用火狐下报e is undefined 错误，求助这是什么问题
------解决方案--------------------
LZ，firefox里没有window.event对象，如果需要event对象，可以通过参数方式传递

function?stopPropagation(event){

????????//var?e?=?arguments.callee.caller.arguments[0]??
------解决方案--------------------
?window.event;

        e = event 
------解决方案--------------------
 arguments.callee.caller.arguments[0] 
------解决方案--------------------
 window.event;

????????if(e.stopPropagation){

????????????e.stopPropagation();

????????}else{

????????????e.cancelBubble?=?true;

????????}

????}

showFavorite.prototype = {

        showLevelOne: function(e){

            stopPropagation(e);

            if($('#menu').css('display') == 'block'){

                $('#menu').animate({width: "0", height: this.constractHeight, opacity: '0'}, 300, this.allHide);

            }else{