Trouble with a nested list of radio button options

Hello,

I'm having trouble with a nested list of radio button options on an order form where the customer picks a "narrowing" list of descriptive options. I'm thinking from research that this needs an array to solve the problem I'm having. However, I'm new to setting up and using an array, so could use some help. Here goes!

List 1

There is a four option radio button list1.

When an option is chosen from List 1, another list is displayed--a different one for each option from List 1.

So these are lists 2-5

The number of options on lists 2-5 vary.

List 2 has five options - each option opens another list. These lists have a variety of number of options.

List 3 has two options - each option opens another list. These lists have a variety of number of options.

List 4 has two options - each option opens another list. These lists have a variety of number of options.

List 5 opens a free form field.-

I have the scripts working for each option to open the correct sub list. However, if at the third level the user changes their mind and goes back to level 1 and changes the option, the last set of options does not become hidden.

Am I correct that this needs an array to control. A sample of how to set up an array would be helpful.

Thanks,

MDawn