function popup(page){
	//folder = "prodotti/";
	//page = "popup_foto.htm"
	ext = ".html";
	slash = "/";
	address = page+ext;
	window.open(address,"","height=500,width=500,toolbar=0,scrollbars=1,resizable=0, screenX=0,screenY=0,left=30,top=10");
}