This CGI script can create a unique file for each user containing personal information of any type; my implementation records and displays email addresses. The address book window is made up of two frames: one to display the current list of addresses in the user's file, and the other to add new addresses.

Example
Click here to open a small window which will allow you to try out the address book. Enter names and addresses into the form then press the "Add Address" to test it out.