What lightbox is used here?

I am wanting to try out a few new lightboxes and I like the one used here. The next and previous buttons are nice and the chance to have it resize (upon clicking) to a large version is nice. Right now I'm using mediaboxadvanced, but I'm not using many videos so I'm sucking up more bandwidth than needed.

thanks.

I skimmed the page source, but it's all jumbled and hard to find. I'm referring the Javascript lightboxes.