Topic: Scrolling function for Panoramas

hey dudes,
im working on a site where i have a fixed image size of 625x415, but i have some images which are 2000+(width) by 415(height). i was wondering how could i implement a script that would allow for the image to scroll across horizontally when your mouse rolls over over it?

time's running out on me as this site needs to be up wed morning. any ideas would be very much appreciated.