Sliding background image help

Hi,

I have a website which I am currently developing. The design I have has a background image in the header. In this header is the navigation, logo and a few other bits. All positioned over the top of the background image.

The client wants this image to be a sliding image (Insert appropriate cuss word here)!

I cannot find a simple solution to this. I don’t want a full screen image slider, and I need the image to be a background image in order to sit behind the content within the header so that I do not have to redesign or code or style the work already done.

Can anybody suggest any plugins out there that might do this specific job? I am looking for the simplest, quickest solution out there as this site is already developed without this feature and I was hoping to make the site live within the next few days.

Basically a plugin to slide say 5 images in the header.

Any help or guidance would be greatly appreciated.

Thanks in advance

Dan