function ex () {
  var e;
  e = "<a class='extern' href='http://www.xennis.de/fun/extern.php' onclick='InfoFenster(this.href); return false'><img src='http://www.xennis.de/fun/images/extern.gif' border='0'></a>";
  document.write(e);
}

function InfoFenster (Adresse) {
  Fenster = window.open(Adresse, "Zweitfenster", "width=300,height=220,left=100,top=200,location=no,menubar=no,resizable=no,scrollbars=no,status=no,toolbar=no");
  Fenster.focus();
}

function Fehler (Adresse) {
  Fenster = window.open(Adresse, "Zweitfenster", "width=300,height=240,left=100,top=200,location=no,menubar=no,resizable=no,scrollbars=no,status=no,toolbar=no");
  Fenster.focus();
}

function Link () {
  document.write(document.URL);
}

if (top != self)
  top.location = self.location;