window.addEvent('domready', function() {

var catalogo = $$('ul#sub_catalogue li');

catalogo.each(function(el){
				   	
	var childs = el.getChildren('ul');

	if(childs.length > 0){
		el.addEvent('mouseenter', function(){
			childs[0].setStyle('display', 'block');
		});
		
		el.addEvent('mouseleave', function(){
			childs[0].setStyle('display', 'none');
		});
	}

});

// Chiusura del DOMREADY
});