Make an image appear/disappear next to another image

I have a menu made up of images in rows in a table. When I mouse over an image, I want a second image to appear to it's right (like a sort of flyout tab). With animation woul dbe great!
Anyway, I could use position: relative; in CSS to put the flyout image where I want, but this would break the site, I need the image to float over everything else. I could use position: absolute; but I dont know know the x,y co-ordinates of the original image. Does anyone have code or a library that will make an image apear or slide in next to another image and hover over other page elements?
thanks in advance
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ZvonkoSystems architectCommented:

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