javascript in IE or Mac

I have a javascript function that allows me to submit a form. Here is the
code:

<script language=JavaScript>
function SubmitForm(Action) {
document.S1.action = Action;
document.S1.submit ();
}
</script>


It is called from with a form with the following code:

<script language="javascript">
SubmitForm('https://payflowlink.paypal.com')
</script>


This runs fine in IE - the form data is submitted to the URL specified in
the SubmitForm function.
When this runs in Firefox on a Mac, nothing happens (no error, but no
submit).

Anybody have an idea as to why? My guess is that I don't know javascript
too well and am doing something wrong that IE forgives but Firefox does not.


Larry Kleinman
Kleinman Associates, Inc.
212-949-6469
203-255-4100