TQ for the answer but I have another question, how to check whether Panel A already has record in
database or not? If panel A already has data so user can proceed with insert data in panel B.
Example :
1. User is first time key in data in panel A. That means user must complete panel A first before
he can click to panel B (in this situation, panel B is disable)
2.If there already has data in panel A, so panel B is clickable.
*he must check with database to get the record validation.