Help with Log in behaivour based on selection

Hi,
I have this log in page with the default 'log in' server behaivour applied
to a form with the username and password fields. What I also have is two
radio button options in the same form that needs to direct the user to a
different page depending on which radio button is selected.

Any ideas on how I should apprach this problem??

Cheers

Tom
www.telliott.co.uk