<!--
  function set_vpers(val)
  {
    var disab;
  
    if (val == "ja")
      disab = true;
    else
      disab = false;
  
    with (document.dateneingabe)
    {
      geschlecht_vpers[0].disabled = disab;
      geschlecht_vpers[1].disabled = disab;
      geb_tag_vpers.disabled = disab;
      geb_mon_vpers.disabled = disab;
      geb_jahr_vpers.disabled = disab;
    }
  }
//-->