title: PHP: Implementation Question with Dynamic dropdown menus
body: <p>This is what I want my site to do:<br />
   1. User fills in some drop down menus<br />
   2. User clicks "Update Button"<br />
   3. Old Drop downs are disabled (but still visible), and new drop downs appear below with options based on the first drop down menus (in a way that i specify)<br />
   4. Repeat 1-3 a few times<br />
   5. User submits Data</p>
  
  <p>My starting point I have been using is a page that sends POST data to itself, each drop down selection is saved into a var(ie. $A1 = $_POST[A_First]) and the new drop downs are populated with these vars (using a function i made). The page works nicely without disabling the Previous menus, but once i try to do that i run into problems (since disabled tables cannot be accessed via $_POST)</p>
  
  <p>Does anyone have an idea on where i can look for a solution?
  Again, right now I have the menus, and the update button creating new menus, but it is only good if a user goes through the natural flow, If changes are made then errors can occur. I am looking for a way to stop a user from breaking the flow by disabling the previous menus.</p>
  
  <p>Thanks</p>