If that's the behaviour that you want, you will have to preload all of the data into javascript arrays as you are creating the page and then write javascript to modify the drop down (select) menus.
A google search for "select javascript depend" should turn up some useful tutorials like this one from Matt Kruse
In reply to Re: Ideas for Logic to fill out this form
by clscott
in thread Ideas for Logic to fill out this form
by PerlJunkie45
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