//preloading images of the submenu for the actividades

		rutasover= new Image;
		rutasover.src = "/img/rutasover.gif";

		rutascocheover= new Image;
		rutascocheover.src = "/img/rutascocheover.gif";

		clasesover= new Image;
		clasesover.src = "/img/clasesover.gif";

		eventosover= new Image;
		eventosover.src = "/img/eventosover.gif";