Do you validate?

I have spent most of my waking moments this weekend coding, refactoring and documenting a framework for easily extensible unobtrusive client-side form validation.

XUI Validation is based on jQuery and provides a simple mechanism for adding new custom validations that will apply via unobtrusive semantic hooks to any form.

Why another unobtrusive validation framework? Because the other OSS validation frameworks I have come across are not as easily extensible, or provide the ability to display a summary of errors a the top of the form (on submit).

Check out the demonstration page demonstration page, or download the package the package to see what I mean.

Thoughts, ideas, feedback? Leave me a comment.