var showpfad
  function PopUp1(showpfad) {
  var Breite_intern;
  var Hoehe_intern;
  Breite_intern = (window.screen.width/2) - (570 + 10);
  Hoehe_intern = (window.screen.height/2) - (400 + 50);
  var win2 = window.open('http://www.hochstift-virtuell.de/kunden/pb/' +
showpfad,"Window2","status,height=400,width=570,resizable=yes,left=" + Breite_intern +
",top=" + Hoehe_intern + ",screenX=" + Breite_intern + ",screenY=" + Hoehe_intern +
",scrollbars=no");
  win2.focus();
}