test dropdown value from form

[David]

Hi,

I have an asp page with a simple form.
The form has a dropdown which is database fed.

Once the user selects a value from the dropdown, I need some code to
test the value selected.

If the value is 'X' then, make certain other form fields visible,
otherwise hide them.


Can this be done ? perhaps it needs to be done in clientside
javascript (obviously a different group before I get shouted at


Thanks


David