Zeldman recently mentioned several image rotator scripts for displaying random images on your pages. Hivelogic’s Image Rotator 1.5 and Matt Mullenweg’s A Better Image Rotator accomplish the task well. But two problems worth mentioning is their inability to display images of different sizes, and use a different alt text for each image. This site has been doing exactly that for quite some time now, using a short snippet of PHP. Of course, you can get the details.