Dynamic Form Suggestions Needed

[reefland]

Hi All,

I am stuck in a design blackhole and can't come up with any solutions so I need your help. Here's the scenario.

I have a form and on the forum I have a drop down box that simply has numbers ranging from 1-6. Let's say the box is asking "How Many Cars Do You Have". Depending on which selection they make, I need to capture the make of that many different numbers of cars.

How would you go about doing this? Would you use some javascript to make that many other drop downs appear when the number was selected? Would you just have them enter the number and go to another page with that many drop downs? Would you do it with some kind of pop-up window that when a number is selected a window opens?

I am very interested in hearing how you might tackle this problem. This is for PHP/Mysql.