While working on an online school application I came across the need to users to be able to change their passwords, I wrote a quick and dirty random pass script, then decided to see if I could figure out how hard it would be to test the strength of the entered password.
Ryan Stemkoski found Phiras’s blog post about a jQuery strength tester. Which I used and modified to reduce all need for any external libraries. (jQuery or Mootools, etc…)
I have a Demo @ http://dev.lendrum.co.nz/passwords/
and you can download the code here.
Passwords.v1.0 (351)