[thelist] Double drop down lists

[Darin Lang]

I want to have 3 simple lists
Countries - US, Canada
States - [50 states]
Provinces - [10 Provinces]

accessed through two dynamic drop down menus, so that if you choose a 
province from the combined list of provinces and states, it switches 
the country drop down to "Canada"
Or if you select "Canada" the states/provinces drop down only lists 
provinces. etc.

I am sure someone has already figured this out, but i can't find it.

Darin Lang