homeoff=new Image();homeoff.src="index-4x1_off.jpg";
homeon=new Image();homeon.src="index-4x1_on.jpg";

doveoff=new Image();doveoff.src="index-5x1_off.jpg";
doveon=new Image();doveon.src="index-5x1_on.jpg";

offertaoff=new Image();offertaoff.src="index-6x1_off.jpg";
offertaon=new Image();offertaon.src="index-6x1_on.jpg";

photooff=new Image();photooff.src="index-7x1_off.jpg";
photoon=new Image();photoon.src="index-7x1_on.jpg";

contoff=new Image();contoff.src="index-8x1_off.jpg";
conton=new Image();conton.src="index-8x1_on.jpg";

function cambia(name,imma){
		 layname = "";
		 if (document.layers){
   		 	document.layers[layname].document.images[name].src=eval(imma+".src");
		}
		else if (document.all){
	 		 document.images[name].src=eval(imma+".src");
		}
}