This small project is password strength meter for web pages written in javascript and html. The password strength is based on the entropy of the character sets used. Entropy in this case means the number of possible combinations of lowercase letters, uppercase letters, digits, and special characters that are possible in a password.
Please see the project home page at http://passwordmeter.sourceforge.net.
This project was inspired by a Randall Munroe cartoon at http://xkcd.com/936/.