window.addEvent('domready', function() {
var list = $$('div.menu1 li');
var lastElm = null;
	
	list.each(function(element) {
		
		
		
		element.sublist = element.getElement('ul');
		if ($chk(element.sublist)) {
			element.sublist.fx = new Fx.Styles(element.sublist, 'opacity',{duration:180});	 
			
			element.addEvent('mouseenter', function(){
				//if (lastElm == element) return;
				//if (lastElm != null) hideChildren(lastElm);
				
				lastElm = element;
				element.sublist.style.opacity = 0;
				element.sublist.style.display = 'block';
				
				element.sublist.fx.stop();
				element.addClass('active');

				
				//list.each(function(el) {
					//hideChildren(el);
				//});
				
				
				element.sublist.fx.start({
					'opacity':0.8
					//'filter':'alpha(opacity=80)'
				});
				//fx.start(1);
			});
			
			element.addEvent('mouseleave', function(){
				element.sublist.fx.stop();
				element.sublist.fx.start({
					'opacity':0					
				});				
				
			});
		}	 
	});
	
	
	function hideChildren(el) {
		
		el.removeClass('active');
		var child = el.getElement('ul');
		if (!$chk(child)) return;
		hideChildren(child);
		
		child.fx.start({
					'opacity':0
					//'filter':'alpha(opacity=0)'					
				});
	}
	
});