Coldfusion or JS Referrer NOT recognized from Flash AS

Trying to display referrer from AS code, but it is not recognized by either JS or Coldfusion.  The Flash AS button is:

_root.myButton_btn.onPress = function() {
      getURL("javascript:var mypopup = window.open('http://www.slp3d2.com/launchsiteglobal/previewPlayer/previewPlayer2.cfm?projectCode=ahs_1243&clientName=morristown&previewStatus=ready','mySite','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,width=780,height=425');");
};

The web page that that pops up does NOT recognize the referrer.  The code to output referrer that has been used is:

<cfoutput>
referer:#CGI.HTTP_REFERER#
</cfoutput>

<script language="Javascript">
if (document.referrer&&document.referrer!=""){
document.write('Referrer URL: '+document.referrer+'<BR>');
}
else{document.write('NO referrer');}
//-->
</script>

Any ideas why this may be occurring and is there a solution?

TIA,

Terry