var menuRules = {
	'ul.level-1 li' : function(el){
		el.onmouseover = function(){

			var currentClasses = this.className;
			if(currentClasses != null)
			{
				var newClasses = currentClasses + " menuItemHover";
				this.className = newClasses;
			}

		}
		
		el.onmouseout = function(){
		
			var currentClasses = this.className;
			if(currentClasses != null)
			{
				var newClasses = currentClasses.replace(" menuItemHover", "");
				this.className = newClasses;
			}
		}
	}
};



function addEvent( obj, type, fn ) {
	if (obj.addEventListener) {
		obj.addEventListener( type, fn, false );
		EventCache.add(obj, type, fn);
	}
	else if (obj.attachEvent) {
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
		EventCache.add(obj, type, fn);
	}
	else {
		obj["on"+type] = obj["e"+type+fn];
	}
}

var EventCache = function(){
	var listEvents = [];
	return {
		listEvents : listEvents,
		add : function(node, sEventName, fHandler){
			listEvents.push(arguments);
		},
		flush : function(){
			var i, item;
			for(i = listEvents.length - 1; i >= 0; i = i - 1){
				item = listEvents[i];
				if(item[0].removeEventListener){
					item[0].removeEventListener(item[1], item[2], item[3]);
				};
				if(item[1].substring(0, 2) != "on"){
					item[1] = "on" + item[1];
				};
				if(item[0].detachEvent){
					item[0].detachEvent(item[1], item[2]);
				};
				item[0][item[1]] = null;
			};
		}
	};
}();

addEvent(window,'unload',EventCache.flush);
 
addEvent(window,"load",addLastListItemClass);

Behaviour.register(menuRules);



/*
 * Adds the 'lastItem' class to all lists
 */
 function addLastListItemClass(){
 	
	var ulItems =  document.getElementsByTagName("ul");
	

	
	for(i=0; i<ulItems.length; i++)
	{
		if(ulItems[i].hasChildNodes)
		{
			lastChild = ulItems[i].childNodes[ulItems[i].childNodes.length -1];
			lastChild.className = lastChild.className + " lastItem";
		}
	}

	
 }