Hi Rod,
There are two ways in this regard,
1-you want to validate them on the serve-side,
2-you want to validate them on the client-side,
it's clear checking them on the client-side results in better performance,so if you want to work-
on the client-side it's better to ignore such validators and work just with JavaScript,there would
be no need for hidden textboxes anymore,
but if you want to work on the server-side,you can use such validators easier,
(but ignore client-side facilities like showing po pup windows and ...),
(for more info you can have a look at Renu's thread).

_____________________________
Mehdi.
software engineering student.
Looking for a good job for summer 2005.