function doclear(formular, feld, text) {
  if (document.forms[formular].elements[feld].value == text) {
    document.forms[formular].elements[feld].value = "";
  }
}

function popup_news (url) {
 fenster = window.open(url, "Meldung", "width=400,height=300,resizable=yes");
 fenster.focus();
 return false;
}