agent = navigator.userAgent
if (agent.indexOf("a/3",6) == -1)
{
if (agent.indexOf("a/4",6) == -1)
 {
  browserVer = 2
 } else
 {
  browserVer = 1
 }
} else
{
 browserVer = 1
}

var antwort_fenster = null;

function stadtplan_window(datei) {
        antwort_fenster =
window.open("","displayWindow","toolbar=no,width=470,height=400,scrollbars=no,resizable=no,align=center,position:relative;left:50;top:50")

  if (antwort_fenster != null) {
  if (antwort_fenster.opener == null) {
   antwort_fenster.opener = self;
   }
  antwort_fenster.location.href = datei;
  if (browserVer == 1)
  {
   antwort_fenster.focus();
  }
 }
}
// -->