locking checkbox fields
I have a form that I can't lock using the security permissions because it is a two part form with 2 signature fields and I want to lock part 1 and still be able to access part 2. On most of the fields I have a script that commits the record on field entry if signature1 is not empty, but can still change the checkbox fields eventhough I set the script trigger on those. Maybe because filemaker is not recognizing this as entering the field (just like clicking a button does not make it the active object)? Is there a way to prevent editing these fields based on the status of the signature field?