window.addEvent('domready', function(){
 
var item = $$('.mod_navigation ul.level_1 li.submenu');
 
item.each(function(element) {
 
	element.addEvent('mouseenter', function(){
		element.getChildren()[1].setStyle('visibility', 'visible');
		});
 
	element.addEvent('mouseleave', function(){
		element.getChildren()[1].setStyle('visibility', 'hidden');
		});
		

	});
	
});