Automatically close viewer after last image?

Hi! After trying a dozen different gallery plug-ins and finding them lacking, I’m so glad I stumbled on this one– it’s wonderful!

There is one thing I haven’t been able to figure out, though. Is there a way to make the lightbox automatically close when the visitor has come to the last image and clicks ‘next’? Right now it just cycles back to the beginning and starts over.

Any help you can provide would be much appreciated. Thanks for a fantastic plug-in!