modate = new Date(document.lastModified);

  year = modate.getYear();

  if (year < 80)

    year += 2000;

  else if (year >= 80 && year < 200)

    year += 1900;

  mon = modate.getMonth()+1;

    if (mon < 10)

     mon = "0"+mon;

  dat = modate.getDate();

  if (dat < 10)

    dat = "0"+dat;

  resu = "Letzte Aktualisierung: "+dat+"."+mon+"."+year;

  document.write(resu);