I’m all about hooking you guys up with things that are simple, easy, and good, I’ve taken the liberty of preparing a brand new header.php file that you can download and install in order to get cracking with random header images.
Y. Yu, H. Fard, J. Mylopoulos, und P. Andritsos. International Conference on Software Maintenance (ICSM 2005), Seite 59--68. Budapest, Hungary, The IEEE Computer Society, (September 2005)