function apri(url_foto,des_foto){ 
	addr="zoom.htm?"+url_foto+"&"+escape(des_foto);
	alt=150; 
	lar=150; 
	rszb=(document.layers)?1:0; 
	props='height='+alt+',width='+lar+',top='+parseInt((screen.availHeight-alt)/2)+',left='+parseInt((screen.availWidth-lar)/ 2)+',scrollbars=0,resizable='+rszb+',toolbar=0,menubar=0,location=0,status=0'; 
	window.open(addr,'foto',props); 
}