One I have been using for 20 years (in the head section) in the holding page.


<script language="JavaScript" type ="text/JavaScript">
<!--
var brows = navigator.appName.substr(0,8) ;
if ((brows == "Netscape") && (parseInt(navigator.appVersion) >= 3)) self.parent.location.replace("http://mister.red/blahblah.htm") ;
else if ((brows == "Microsof") && (parseInt(navigator.appVersion) >= 4)) self.parent.location.replace("http://mister.red/blahblah.htm") ;
else self.parent.location = "http://mister.red/blahblah.htm" ;
//-->
</script>

or just
top.parent.location="http://mister.red/blahblah.htm" ;

will do it.