Conditional URL in form post?

Hello there,

I am trying to send a form post to different URLs based on the data submitted in the form (if the user selects credit card payment I need to send a form POST to a payment gateway, and if the user selects invoice payment type then I will process the form data within the Rails app). I have tried using Net::HTTP from the controller, which works well in sending a POST request with the needed parameters, however I am not directed to the URL I am posting to (which needs to happen to complete the credit card transaction).

Any help/ideas would be very much appreciated.

Thx, -Fredrik Bach