window.addEvent('domready', function () {
	var menu_items = $ES('li', $('menu'));
	for (var i = 0; i < menu_items.length; i++) {
		menu_items[i].addEvent('mouseover', function () {
			this.addClass('over');
		});
		menu_items[i].addEvent('mouseout', function () {
			this.removeClass('over');
		});
	}
});