Show form field based on radio button

[Mardirousi]

ASP / VBScript / DW CS3

As part of a form we have seven radio buttons. Five of the choices require that a State be selected from a drop-down menu. We don't want to confuse the user by having five drop-downs. How can we diplay the drop-down associated with a particular radio button only if that radio button is selected?

[MikeL7]

I think what you need is a onChange event that will activate when a radio button has been selected, but not sure exactly or a onChange for the state select box.