Source from Jottings.com
ANTI-SPAM EMAIL LINK OBFUSCATOR
Spam bots are getting a lot smarter at harvesting email addresses from web pages
This tool was originally conceived and written by Tim Williams of The University of Arizona. The code to randomly
generate a different encryption key each time the tool is used was written by Andrew Moulden of Site Engineering Ltd.
Ross Killen of Celtic
Productions Ltd has also created a PHP version to enable use of this technique in web applications.
This code is distributed as freeware, provided the authors' credits etc remain exactly as shown.