Works, but doesn’t work…

I am fairly new in the JS scene. I am trying to check a ckeckbox “rg” in the form. If the checkbox is not checked post to page1, If the checkbox “rg” is checked – post the form information to a differnet page “page2.asp

It works on IE and NS on a Mac, it works on windows 95 and 98 in IE and NS, works in windows 2000 and xp in NS only. I cannot get this to work for IE in the newer browsers . Any thoughts would be great.

<script language=”JavaScript”>
<!–
function checkForm( thisform ) {

if (thisform.rg.checked == 1)
{
document.form1.submit(); document.form1.action = “http://www.page2.asp“;
return(false);
}
return(true);
}
//–>
</script>

<form method=post action=http://www.pag1.asp onSubmit=”return checkForm(this)” id=form1 name=form1>

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