lightbox-gone-lucent

Lightbox is the concept name of a modal window with DHTML. The first lightbox script has been developed by Lokesh Dhakar.

Other implementations are: Lightbox 2, Thickbox, Greybox Redux, Lightbox-gone-wild, Multifaceted Lightbox, Leightbox, Hover Lightbox, Litebox, LITBox, iBox, Slimbox and Lightbox PhotoViewer.

.. and this is another one.