[jQuery] Validation plugin - Using with 'button' buttons?

[Brad]

I'm trying to integrate the Validation plugin into an existing
project. The forms use AJAX and the buttons are not of type 'submit',
but type 'button'. If I change the type to 'submit' I can see
validation works, but doing so will require other code changes. Is
there any way to get it to work with a 'button' button?