Help with form validation

[eluser]RecoilUK[/eluser]
Hi guys

I have an issue with the form validation class, and was wondering on the best way to proceed.

The problem is this ...

I have 2 fields - postcode1 + postcode2

These fields will ultimately be combined in postcode.

The form works fine, but is there a manual way of injecting postcode into the class so I can still use the form validation functions on it, instead of checking both postcode1 and postcode2 and displaying both error messages? I only want the one error message.

Thanks guys.