var Hover = new Class({
	
    initialize: function(containerId, elementTag){
		this.hovers = $A($(containerId).getElementsByTagName(elementTag));
		
		this.hovers.each (function(item){
			$(item).addEvents({
				'mouseover': function(){
					item.addClass("hover");
				}.bind(this),
				'mouseout': function(){
					item.removeClass("hover")
				}.bind(this)
			});
		}.bind(this));
    }
});

window.addEvent('domready',function(){
	var MainmenuHover = new Hover("horizontalMenu", "li");
});