[Zope] How can I capture the url of a form submission for future use?

I have a form which returns sql queries to another frame. the frame query acts as a second form query to an image which is presented in the same frame. i want to be able to then split the frame into 2 to review the original sql query . I hope to put a button on my original form which splits the 2nd frame into 2 and presents the image on one side and the sql query on the other. I can do this statically by putting the urls of the 2 pages into a frame. How can I capture the url of the form submission to do this dynamically? is there a better or simpler method. thanks