Expiry date validation for Special product

[ashishgandhi]

Hello,

I m having issue with expiry date of special products. what happen is when i select the product from the list then i give the special price then it ask for available date n after that it ask for expiry date.when i enter expiry date less than available date it's not showing any error msg or alert to me.

how to solve this problem?
i want is expiry date should never be less then available date...

plz help me.
its urgent

Thanx

[ashishgandhi]

thanx guys i have solve my issue

[Ajeh]

What was the solution that worked for you?

[ashishgandhi]

i have simply put a javascript on submit button.....