I'm looking into using a tooltip/popup which shows a larger image and description when hovering over a thumbnail.
The problem is there will be quite a few thumbnails on screen so I only want a larger image downloaded if it is actually needed i.e. the user moves over that particular thumbnail.
Is this possible and better yet is there a script available which already does this?
Lightbox JS and Thickbox are things that do this. They both require javascript libraries (prototype/scriptaculous and jQuery, respectively). They both also function on clicking the link, but could be easily modified to function on mouseover and without the grey overlay.
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