Initial work toward form validation
Initial work toward form validation
Working toward client side form validation.
Working toward client side form validation.
Working toward client side form validation.
Working toward client side form validation.
Working toward client side form validation.
Working toward client side form validation.
Working toward client side form validation.
Implemented client side validation with code igniter rules.
Implemented client side validation with code igniter rules.
Implemented client side validation with code igniter rules.
Implementing client side validation.
Client Side Form Validation
Patch CI bug that prevents a form from re-populating on error if no validation rule was set.

http://ellislab.com/forums/viewthread/96617/P15/#689642
Cleaning up client side form validation features.
Cleaning up client side form validation features.
Cleaning up client side form validation features.
Cleaning up client side form validation features.
Finishing client side form validation features.