Event.observe(window, 'load',function(){
			$$("li.linkMenu a").each(function(item){
				if(item.ancestors().first().hasClassName("linkMenu")){
					item.observe('mouseover',function(event){
						var obj = Event.element(event);
						if(obj.tagName == "A" && obj){
							new Effect.Opacity($(obj).siblings().first().identify(), { from: 1.0, to: 0.0, duration: 0.3 });
						}
					});
					item.observe('mouseout',function(event){
						var obj = Event.element(event);
						if(obj.tagName == "A"){
							new Effect.Opacity($(obj).siblings().first().identify(), { from: 0.0, to: 1.0, duration: 1 });
						}
					});
				}
			});
		});