Please visit  jquery.ramiyahya.com to see what I've got so far... The effect that I'm after is when a user hovers over a thumbnail, the black box disappears. On click, the thumbnail enlarges and the black box disappears. 

So far, I've managed to achieve to a certain extent... only problem I'm facing is that onClick the overlay disappears from all the thumbnails and not just the one that has been clicked.

If anyone could look at my code and let me know what needs to be changed... and since I'm new to jQuery, it'd be great if you could send me the code instead of explaining only the logic that needs to be applied. 

Thanks in advance