Different set of header images to rotate for a different post/page/category

Hi,
I like very much the Atahualpa header images rotator. However, not all header images fit to all posts. I would like to display and rotate a set of images for a given post/page or for a category. For example, car images for “car” category, buildings for “building” category etc. I know it isn’t an out of the box feature but it would greatly improve design of my site. Any help would be greatly appreciated.