Passing a Javascript variable to a PHP using <script> call

[2ndPlatform]

Alright - I'm stumped. I need to get a variable from file1.html to file2.php which is called like this from file1.html:

<script src="scripts/file2.php" type="text/javascript"></script>

In file1.html I have the variable definition to grab the referring URL -

<script>
if (document.referrer) {
	var referringURL = document.referrer;
} else {
	var referringURL = "No referrer."
}
</script>

But I need to get 'referringURL' into that PHP file.

Any suggestions?

Thanks.

[tgreer]

You want to turn a QueryString argument into a PHP variable?