Well, that must be the beginner's excitement of being able to create valid code... and seriously, the idea to remove my little validation boxes of pride causes me almost as much pain as the thought of to stop smoking... but then, you are right, they do not add anything to the page.
After being enlightened about the real function of positioning in another thread, I might even be able to get the centering done.
jlhaslip: Thats a beautiful thing, that Hoverbox. Much prettier to have it in a neat box and not spread all over like mine. Just would like bigger hover-on images than the ones in the example and some margin between the small ones but for that I will have to get into zooming images and image-sizes in general, stuff I do not understand yet. Then I will go for it, leaving my family without dinner for a couple of days more. (Why don't they feed on code, like me... )
Thank you all for making me learn more!