Cheap Tricks 2: A Dynamically-Linked Listbox
http://www.atgconsulting.com/doublelist.asp
Initially sends all data to the page and then lets JavaScript populate
the second list box.
And similar but better one (improved code and 3 select boxes):
Cheap Tricks 4: A Triple-Linked Listbox
http://www.atgconsulting.com/triplelist.asp
Universal Related Popup Menus v 2.02
http://webreference.com/dev/menus/
Initially sends all data to the page and then lets JavaScript populate
the second list box.
Best regards,
J. Paul Schmidt, Freelance Web and Database Developer
http://www.Bullschmidt.com
Access Database Sample, Web Database Sample, ASP Design Tips