window.addEvent('domready', function() {
	var lis = $(document.body).getElements('.service-menu li');
	lis.each(function(item) {
		if (item.getElement('ul')) {
			var ul = item.getElement('ul');
			var myFx_in = new Fx.Tween(ul, {duration: 500, transition: Fx.Transitions.Quad.easeInOut});
			var myFx_out = new Fx.Tween(ul, {duration: 500, transition: Fx.Transitions.Quad.easeInOut});
			if (!item.hasClass('active')) {
				var height = ul.clientHeight;
				ul.setStyle('height', 0);
				item.addEvents({
					'mouseenter': function() {
						myFx_out.cancel();
						myFx_in.start('height', height);
					},
					'mouseleave': function() {
						myFx_in.cancel();
						myFx_out.start('height', 0);
					}
				});
			}
		}
	});
});