document.observe("dom:loaded", function(){
	$$('a.product-image').invoke('observe', 'mouseover', function(event) {
			var element = Event.element(event);
			var aux = element.src;
			if(element.next(0)){
				element.src =element.next(0).src;
				element.next(0).src = aux;
			}
			
		});
	$$('a.product-image').invoke('observe', 'mouseout', function(event) {
			var element = Event.element(event);
			var aux = element.src;
			if(element.next(0)){
				element.src =element.next(0).src;
				element.next(0).src = aux;
			}
		});
	}
);