Rotating Header Logos

[Geeps]

I've checked through several threads, and I wanted to know the best way to make the right side of a header photo or image change when a member enters or refreshes the forum page.
I want to keep the left header image, our logo intact, no rotation.

Thanks

[Aken]

Make your header consist of two images, the right and left sides, and then use Kirk's instructions here to make them rotate.