We have a need to add format validations for fields in supplier page

In the Manage suppliers under Bank, there is a field IBAN to enter IFSC Code, The format of the IFSC Code is as below

The IFSC is an 11-character code with the first four alphabetic characters representing the bank name, and the last six characters (usually numeric, but can be alphabetic) representing the branch. The fifth character is 0 (zero) and reserved for future use.

The format of the IFS Code is shown below.

1	2	3	4	5	6	7	8	9	10	11
1	Bank Name				2	Zero	3	Brach Code
1	Alphabets				2	0	3	Alphanumeric

Can we add format validation as above.

Regards

G Rekha