2nd option list box

[tjbarr]

2nd option list box
I have a list box that lets you choose a region:
state
national
county
metro

I want another list box to pop up depending on which region they choose. e.g.
They chose state
so a list box shows up

alabama
alaska
arizona
arkansas...

or they choose county
they the same box appears above but then another box pops up to choose counties. e.g.
they choose ohio above:

so a list box of counties in Ohio appears
cuyahoga
ashtabula
medina
lake
lorain

Please help

[theeper]

I would say to use a combination of JavaScript, PHP and a DB.

Use a JS OnChange event in the first SELECT box to call a window.location method to reload the page.

Pass a search string from the first SELECT box to the window.location method which PHP will use to populate the options for the second SELECT box.

This will make your page reload with each click. I am sure you could alternatively load all the SELECT options for each box into an array and not have to load the page each time, just have it write the new SELECT box when you need it.