var qspopheight=595;
  var qspopwidth=795;

  function openQSWindow(pageToLoad, winName, center) {
  xposition=0; yposition=0;
  if ((parseInt(navigator.appVersion) >= 4 ) && (center)){
  xposition = (screen.width - qspopwidth) / 2;
//  if (xposition < 280) xposition = 280; // 21.4.04 UM: auskommentiert
  yposition = (screen.height - qspopheight) / 2;
  }
  args = "width=" + qspopwidth + ","
    + "location=0,"
    + "menubar=0,"
    + "resizable=1,"
    + "status=0,"
    + "titlebar=0,"
    + "toolbar=0,"
    + "scrollbars=yes,"
    + "height=" + qspopheight + ","
    + "screenx=" + xposition + ","  //NN
    + "screeny=" + yposition + ","  //NN
    + "left=" + xposition + ","    //IE
    + "top=" + yposition;          //IE
  //var qspopwin=window.open(pageToLoad,winName,args);
  // mit folgendem Befehl wird das Fenster erst 'mal geleert!
  var qspopwin=window.open('/leer.htm',winName,args);
  qspopwin.focus();
  qspopwin.location=pageToLoad;
  maisAuswertungsFenster=qspopwin;
 }