Previously on Philroche.net, the header images were populated from a PHP Array which generated a ul with javascript links to change the header image. Not nice as it relied on javascript. After some ajaxian fun, the list is now generated from an XML playlist and the list is fully accessible with click events attached to each link to change the header image.
All code is licensed under the Creative Commons Attribution 2.5 License.... If you use it, for God's sake give me some credit(or money, you choose).