Gallery plugin, can’t remember the name!!!

I had reciently found a plugin for an image gallery that displayed in a post a grid of images from the album something like 4 across and however many down. The neat feature was that on clicking the image it brought a popup window to let you see the image larger… upon finishing my gazing all i had to do was click on the photo again and it closed…
javascript was incorporated !

Does anyone know that the name of that gallery software was??????? can’t find it anywhere now!