// prelevato da: www.casinoroyale.it

function addTag(tag) {
  window.document.guestbook.message.value += tag;
}

function demung(email) {
  if (email.indexOf("mailto:") == 0) {
    email = email.substring("mailto:".length, email.length);
  }
  var lastDot = email.lastIndexOf(".");
  var numb = parseInt(email.substring(lastDot+1, email.length));
  email = email.substring(0, lastDot);
  var email1 = email.substring(0, numb);
  var email2 = email.substring(numb, email.length);
  email = email1 + "@" + email2;
  return "mailto:" + email;
}

function loopLinks() {
  var l;
  if (document.links) 
    l = document.links;
  else 
    return;
  for (var i=0; i<l.length; i++) {
    if (l[i].href.indexOf("mailto:") == 0 && l[i].href.indexOf("@") == -1) {
      l[i].href = demung(l[i].href);
    }
  }
}