embed html in gallery main image window

Complete noob here.  I'm trying to use Galleria to function like so...  Thumbnails are images.  When you click on thumbnail, the main image window loads html(image, description, and "add to cart" button.  You get the idea.  Each thumb has it's own html file to load.  Is this possible?  If so, how do I do.  If not, can somebody point me in the proper direction. 

Thank you so much,
Daniel

Last edited by datrik (2008-08-13 21:42:46)