function login(perform) {
 var action;

 if (perform) {
  cookieSet("usr", document.forms[0].elements.User.value, [null, "/", "matika.it"]);
  cookieSet("pwd", document.forms[0].elements.Pass.value, [null, "/", "matika.it"]);
  action = "&auto=1";
 } else {
  action = ""
 }

 location.href = "http://servizi.matika.it/names.nsf?Login&RedirectTo=http://servizi.matika.it" + action;
}