Not strictly within HTML. You can use Javascript to do what you want, but then anyone with Javascript stripped or turned off or untrusted for your site will get the one single action. Maybe you just want separate smaller forms around your individual buttons, or handle it server-side with a redirect to the right form instead?
Clearly, I need to read up on redirection. The CGI.pm documentation gives me some basics. But I need to understand how GET/POST data gets passed, and which nph and status codes to use.
So far, I haven't found it in Super Search or any of my O'Reily books. Any pointers?