$(function() {
		
			$("#nav-primary ul.menu ul").css({ display: 'none' });
			$("#nav-primary ul.menu li").hover(function() {
				$(this).find('ul.sub-menu')
					.stop(true, true).delay(50).animate({ "height": "show", "opacity": "show" }, 200 );
			}, function(){
				$(this).find('ul.sub-menu')
					.stop(true, true).delay(50).animate({ "height": "hide", "opacity": "hide" }, 200 );
			});
		});