function popup(foto,w,h)
{     window.open(foto,'popup','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizeable=no,copyhistory=no,width='+(w+20)+',height='+(h+20));
}

function goRS(site) {
if( window.opener && !window.opener.closed && window.opener.location.href.indexOf("site") != -1 )
	window.opener.focus();
else {
	winRS=window.open(site, "winRS");
	winRS.focus();
}
}

function preferiti(url, title){
  if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4)) {
    window.external.AddFavorite(url,title);
  }
  else
  	alert("Browser non abilitato")
}