ADD DROP DOWN TO "AREA OF STUDY" PHP SCRIPT TO EXISTING CODE

In the "Admin Panel" under the admin login. I have a quiz creation script. I must you the option to be able to select the appropriate "Area of Study" for the quiz to appear in. 1. Admin logs in. 2. Next Selects "Manage Quizzes" 3. Then Click on the Appropriate Quiz 4. Click "Edit MCQ" In the area the coder must add a drop down menu, this drop down menu must reference the existing "Areas of Study" the user will be able to select from the drop down menu that area of study and that quiz will appear there within the quizzes that are specified. Potential problems. Once the "Area of Study" is chosen by the user, the "sections" drop down menu must also change and reference the "sections" within that area of study. Here is an example to help you better understand: If a user selects a state called "Arizona" and that is the "area of study" the "sections" area must pull in the cities from Arizona..IE Phoenix, Tucson, Flagstaff etc. Definitions "Area of Study" is created by the admin and can be anything "Section" is also created by the admin and goes within the "Area of study" Please see this link to get a [login to view URL] better idea Please make sure that you read the details above to best understand what it is that I am requiring. Please do not reply if you do not know how to code on a dedicated server.