I would like the option to have a small, thumbnail size YouTube player, or image, that displays on a page, but enlarges itself when selected. I would then like the option to decrease it back to the smaller size after it's finished.

I tried a jquery app called prettyphoto, which did exactly what I wanted in the demo, but in practice all it did was link to the YouTube page, which is less desirable than a big YouTube player.

I'm not a real experienced Javascript or AJAX programmer, but I understand the general concepts and I just can't seem to find anything that works correctly.