By popular demand (thanks Ray) the butterfly lightbox has been extended with new functionality.
The biggest new feature is the addition of support for galleries. Specify a gallery using either a container element to wrap the related links, or by using the same rel attribute on related links allows a series of lightbox links to work together, with ‘next’ and ‘previous’ controls presented beside the lightbox content to allow navigation between each gallery item.
Try it out here:
See full examples, downloads and changelog for more detail.