Possible? Detect Payment Gateway

Hi,

I was wondering if the following scenario is possible:

If someone is referred by an affiliate (clickbank, or idevaffiliate, etc), show one set of payment gateways (for example both ClickBank and Paypal). But if they come to the site another way, then just show Payal.

Any ideas?

Ronnie

Sure, you would do a referrer check and then do a hidden form field that matches it.

David