Manipulating Combo Boxes

[ecross]

I would like to work with combo boxes where a user would select an item from one combo box, then the next combo box would only let them select specific choices associated with the first combo box.

Any ideas how to do this? I've done a search and seen something similar a while back, but I cannot find how to do this anymore.

[David Harrison]

There is a shorter (script wise) way of doing this but it won't work on as many browsers, so I offer this way that I did for someone a while ago.
There are five options for each box and there are three boxes (well, 31 actually but you only ever see three at a time).
The user is taken to a page that corresponds to the choice they made in the third box once they press "Validate Results".