window.addEvent('domready', function(){
			
			
			function setDefault(defaultTab) {
			var parents = $$("#links .parent");
			parents[defaultTab].getElement('.Subnav').setStyle('visibility', 'visible');
			parents[defaultTab].getElement('.Subnav').setStyle('z-index', '100');
			var fx = new Fx.Style(parents[defaultTab].getElement('.Subnav'),'opacity', {transition: myTransition, duration:300, wait:false});
			fx.start(1);
			}
			
			function hideDefault(defaultTab) {
			var parents = $$("#links .parent");
			parents[defaultTab].getElement('.Subnav').setStyle('visibility', 'hidden');
			parents[defaultTab].getElement('.Subnav').setStyle('z-index', '0');
			var fx = new Fx.Style(parents[defaultTab].getElement('.Subnav'),'opacity', {transition: myTransition, duration:300, wait:false});
			fx.start(0);
			}
	
			
			var myTransition = new Fx.Transition(Fx.Transitions.linear);
			var parents = $$("#links .parent");
			

			parents.each(function(parent) {
				var fx = new Fx.Style(parent.getElement('.Subnav'),'opacity', {transition: myTransition, duration:300, wait:false});					  
								
				parent.addEvent("mouseenter", function() {
				
						
						parent.getElement('.Subnav').setStyle('visibility', 'visible');
						parent.getElement('.Subnav').setStyle('z-index', '100');
						fx.start(1);
						
					
				});
				
				
				parent.addEvent("mouseleave", function() {
						parent.getElement('.Subnav').setStyle('z-index', '0');
						fx.start(0);
						
													
					
				});
				
			});
});