Hi,
I have an HTML form on my page.
It has a radio box, allowing the user to select 'Credit Card Payment' or 'Check Payment'.

Below that is a form to enter the client's credit card number, expiration date, etc.

Now..
if the user selects 'Check Payment', is it possible to have the form for the credit card info become faded, or inusable?

And if so.. how does one do that??

Tx!