Maybe you could package it up into a jQuery plugin. Stick it on your site, let people use it free for non-commercial purposes, and require people to buy a licen

Maybe you could package it up into a jQuery plugin. Stick it on your site, let people use it free for non-commercial purposes, and require people to buy a license for $100 per site if they use it commercially. Might make some money, though probably not tons. I wouldn't bother worrying about obfuscation. Most companies will gladly pay when required and you can occasionally Google around to find offenders.