Hey Curt!  Just thought I would share with you how I implemented your sprites into my dungeon crawler game for a final project for college!  These sprites are just awesome!  And your attribution is in a comment in the game code that is one level up from the URL (FinalProject folder) in the zombie.js library.  The URL:

http://cs.iupui.edu/~jomoser/FinalProject/main.html

Thanks,

Joel