Credits
Web Design
by Style Shout
See http://www.styleshout.com/
SHA-256 implementation in JavaScript
See
http://csrc.nist.gov/groups/ST/toolkit/secure_hashing.html
http://csrc.nist.gov/groups/ST/toolkit/examples.html
http://en.wikipedia.org/wiki/SHA-2
Ajax Password Strength Meter Script
Digital Spagetti, under Open Source MIT License
See http://simplythebest.net/scripts/ajax/ajax_password_strength.html