window.addEvent('domready', function() {
	

	var navParents = $$(".parent");

	navParents.each(function(parent) {
		
			var subNav = parent.getElement("ul");
			var goSlide = new Fx.Tween (subNav, {transition:Fx.Transitions.linear, duration:100, wait:false});
	
			parent.addEvent('mouseenter',function(){goSlide.start('opacity',1)});	
			parent.addEvent('mouseleave',function(){goSlide.start('opacity',0)});	
			
				
		});
	
	
	
});

window.addEvent('load', function() {
									 
$$("#mainNav a.active").getParent().getElement("ul").setStyles({'visibility':'visible', 'opacity':1});
							 
									 
});