197885 aff ID in html form field

This is quite a simple project but would need help doing it tonight asap. I need to capture the Affiliate ID of the referring affiliate into a hidden form field, here is the html for the form that I created (it's an aweber form): [login to view URL] (view the source to view the html) The form will go on this page: (please see PMB to see the page and the sample affiliate URL)