FormBuilderMaker::getSubmitType() method

Is this a form or pagination submit request for this form?

• Returns boolean true if entire form submitted (or final pagination).
• Returns integer 1 if "Next" button clicked for pagination.
• Returns integer -1 of "Prev" button clicked for pagination.
• Returns integer 0 if form was submitted but did not validate session/security checks.
• Returns boolean false if this form was NOT submitted.