How to hardcode product_group id in signup

I am trying to make different signup forms for two distinct user groups. I have signup_a.html and php and signup_b.html and php copied from orig signup.html and php files.

I want to make signup_a behave as if it was called like signup_a.php?price_group=-1 but not have to actually pass the price_group info. Seems like there must be a way to do by setting something in the signup_a.html or php

Thoughts?

You can add it to the signup_a.php page

function show_payment_form(){
global $t;
global $error;
global $db, $config, $vars;
global $signup_scope_allowed;

$vars['price_group'] = "-1";

David

Thanks davidm1,

That worked like a charm and explained things to me a little better.

Now if I can just figure out what I did to make my payment types disappear, I will be moving forward. LoL