Please find my code here: http://jsfiddle.net/hLef5/

As you can see I have loads of 100x100 images (tiled) they will be different images - when the user hovers over the image they zoom then zoom out... all that is working however I need it to FILL the background and its not at the moment as there is a white line down the right hand side depending on the screensize?

Can someone help me work out how to make my tiles fill the screen even if you can only see half the very right image?