Preview a gallery by hovering - Sherlock Photography
This customisation allows your visitors to hover over the thumbnail for a gallery and see a preview of the newest 5 photos in that gallery. Please try out the example galleries below by hovering your mouse over them (you must hover for a half second to start the preview).

Examples, hover on me!

Installation

If you were able to tweak your YUI configuration, you might do something like this to it:
That would cause this JavaScript customisation to be loaded on your site:
You also need to add this CSS to your theme to stop things shifting slightly on Chrome when the tiles are fading:
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