CiviCRM Community Forums (archive)

I have a site with 2.2.7 (soon to be 2.2.9) on Drupal 6 and on event registration pages, we would like to adjust the price depending on if the registrant is paying via CC or "pay later," which means a check.

Using either hook_civicrm_buildForm or hook_civicrm_pre I think I could handle the backend adjustments, BUT the page also has a "live" total price generated by JS code.

I presently use hook_civicrm_buildForm to add a surcharge for all online payments, and we disabled the "pay later" option. Those who contact the admins directly and pay by check and are entered manually by staff members do not pay the surcharge.

But in hook_civicrm_buildForm there of course is no access yet to the users payment method.

Can anyone affirm that this is doable and also let me know where the JS code might be located (which updates the price) so that I could determine if I can override or add on to it?

Thank you.