window.addEvent('domready',function() {
	var menu = $$('#topmenu ul:only-child')[0];
	if (menu) {
		menu.getChildren('li').each( function(el) {
			var submenu = el.getChildren('ul');

			if ($chk(submenu[0])) {
				submenu[0].hide();
			}
			
			el.addEvent('mouseout', function(event) {
				el.removeClass('active_menu');
			});

			el.addEvent('mouseover', function(event) {
				el.getParent().getElements('ul').each( function(elu) { 
					elu.hide();
				 } );
				el.getParent().getChildren('li').each( function(elu) { 
					elu.removeClass('active_menu');
				 } );
				el.addClass('active_menu');
				var submenu2 = el.getChildren('ul');
				if ($chk(submenu2[0])) {
					submenu2[0].show();
					submenu2[0].addEvent('mouseleave', function(event) {
						el.removeClass('active_menu');
						submenu2[0].hide();
					});
				}
			});
		});
	}
});