var presse_div_id = 'cdu_aktuell_div';
function getPresse(kats,mode,div_id) {
  presse_div_id = div_id;
  new Ajax.Updater(div_id, 'getpresse.php',
    {
      method: 'post',
      parameters: {kats: kats, mode: mode},
      onCreate: function() {$(div_id).innerHTML = '<h1>Lade...</h1>' }
    }
  );
}

function showpm(pmid) {
  window.open("http://www.cdu-rhein-erft.de/ci_2004/viewpm_extern.php?PE_ID=" +pmid, 'CDUPRESSE', 'height=400,width=450,scrollbars=yes');
}