Requiring information from a Catalog resource

This request is a long shot, but I figured I would ask:

We have set up our New Hire process using a Service Catalog in ServiceDesk. We have had an ongoing problem with the users not filling out the required information for a specified application. The example would be that the user selects Application A, but they don't fill out any of the security-related fields related to Application A. The Help Desk then receives the form, and needs to research what the user needs.

We want to disallow the requester to submit the New Hire form if they have selected a specific application, but have left 5 out of the 5 fields in the set as empty.

We have been coding the form in Javascript, so I know that it would be executing the script on form submission, but I can't code for checking that there is data in one or more fields in a bigger set of fields.

Application A

      1. Security field 1
      2. Security field 2
      3. Security field 3
      4. Security field 4
      5. Security field 5

Rule: if this application is selected, do not allow form submission if all of the fields are null.

Thanks.
Dave