Horizontal Scroller

I am looking for a horizontal scroller than is capable of the image looping
effect below. http://www.corbis.com I want the first image to loop instantly
behind the last image (with no blank space in between). On most scrollers I
have seen, the first image does not loop until the last image has completely
scrolled off of the screen (leaving a blank screen for a second). I don't want
this. Does anyone have any suggestions? Thanks.