Form Help In Dreamweaver MX 2004?

Hi

Am trying to create a form where it gives a the user a choice of options which are in a List/Menu.

The problem is that depending on what option the user chooses from the 1st List/Menu it will change the all the options in the 2nd List/Menu.

Can anyone help how this can be done?

Am gonna be using PHP to code the form and if anyone could give a rough guide in the code then that would be great to.

Thanks in advanced :thumb2: