Very basic AJAX and PHP example for loading drop down boxes with XML content
via dzone.com: latest front page by KlausG on 9/23/10
In this very basic example I am demonstrating how to interactively load Html Select elements aka drop down boxes with AJAX and PHP. After a user logs in successfully the first select element provides the user with options for a car make. Based on this first selection a second select element gets rendered to further narrowing down the search by specifying the car model.