I have a dropdownlist on a form that contains data from a stored cookie. This is so the user has a dropdown filled with data specific to them.

What I want to do is let the user type in another value other than listed in the dropdown. Is there a way for the user to type in a value at the top of the list displayed in the dropdown?

I think I have seen this done but am not sure how to do it.

Thanks!
~Piz