window.addEvent('domready', function() {
	$('nav').getElements('li').each(function(e){
		
		var a = e.getElement('a');
		var fx = new Fx.Tween(e,{'duration': 200, 'link': 'cancel'});
		
		a.addEvents({
			'mouseenter': function(event){
				fx.start('opacity', 0.01);
			},
			
			'mouseout': function(event){
				fx.start('opacity', 1);
			}
			
		});
	});
});