window.addEvent("load",function(){
	var menu_list = $$('.submenu');
	var fxMenu    = [];

	menu_list.each(function(el,i){

		el.setStyle("display", "block");
		el.setStyle("opacity", "0");
		
		fxMenu[i] = new Fx.Tween(el, {duration: 200, wait: false});

		el.getParent().addEvent("mouseover",function(){
		  fxMenu[i].start("opacity", 1);
		});

		el.getParent().addEvent("mouseout",function(){

		  fxMenu[i].start("opacity", 0);
		});
	});
});