infinite scroll of images when Ipad is tilted

I to make an image that moves sideways when Ipad is tilted. when the image reaches one of it's end (left or right). I want it to duplicate itself to create an endless flow.
I've written the following code following some explanations on the subject. I've manage to make the image move from one side to another but I don't know how to duplicate it once it reaches the end to create the endless flow.
Can someone help me?
(the page is meant to be seen in landscape view (1024x768) of the Ipad (using Safari).

link: http://mgolan.com/temp/ipad/

thanks in advance.
Michael

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