Event.observe(window, 'load', function (e) {
	$$('#top_menu li').each(function(item) {
		Event.observe(item, 'mouseover', function (e) {
			item.addClassName('hover');
		});
		Event.observe(item, 'mouseout', function (e) {
			item.removeClassName('hover');
		});
		Event.observe(item, 'mousedown', function (e) {
			item.addClassName('active');
		});
		Event.observe(item, 'mouseup', function (e) {
			item.removeClassName('active');
		});
		Event.observe(item, 'click', function (e) {
			var links = item.getElementsByTagName('a');
			if (links && links[0]) {
				window.location = links[0].href;
				Event.stop(e);
			}
		});
		item.style.cursor = 'pointer';
	});
});