Variablen definieren

[Bjoern Lindner]

Hallo!

Kurz und schmerzlos meine Frage.
Wie muß ich die Variable popupWin definieren?

<script LANGUAGE="javascript">
<!--
window.name="parentWin";
function openWin(file, name)
{
if(popupWin.closed == true)
  popupWin = window.open(file, name, 'scrollbars=no,resizable=0,width=200,height=350');
  if ( (navigator.appName != "Microsoft Internet Explorer") && (navigator.appVersion.substring(0,1) == "3") )
   popupWin.focus();
else
  popupWin = window.close();
  popupWin = window.open(file, name, 'scrollbars=no,resizable=0,width=200,height=350');
  if ( (navigator.appName != "Microsoft Internet Explorer") && (navigator.appVersion.substring(0,1) == "3") )
   popupWin.focus();
}
defaultStatus = ""
-->
</script>

MFG Danke Bjoern