Patch to handle multiple instances of the form

Patch provides multiple forms handling. It means, that it generates unique $form_id names for multiple instances of one form on the page and map right FAPI callbacks using hook_forms and hook_form_alter to them.

Inspiration & hook_form multiple instances trick:

http://www.gtrlabs.org/blog/dayre/drupal_5_how_to_process_multiple_insta...