One Primary Key + Multiple Foreign Keys...help Creating Form With Option

I need some help creating a simple datebase to store my documents and other knowledge objects. There are two types of

knowledge objects I need to store: Documents and Questions/Answers. For this reason I have created three tables: Index,

Question, and Document.

The problems I am encountering is that the ID field in the Index Table is the Primary and relates to the ID field in the

other two tables. So basically when I am entering information it can either be a question or document. I want to create a

for so that when its a question that I am entering it records the information in the question table and when its a document

I am entering it records the information in the document table.

I'm a beginner at using access and don't know VB or SQL. Any help would be appreciated.


Table Structure

Index Table
ID (Primary Key)
Link
Type
Source
Reference

Question Table
ID (Foreign Key)
Question
Answer

Document Table
ID (Foreign Key)
Title
Summary
Notes