jQuery Cancel Validation

I have a jQuery function that validates a bunch of form fields when the submit button is clicked.  I also have a button on the page that empties the form if a checkbox is checked.  However, If I click the submit button and validation clicks in, then instead of going through the validation and filling in the fields, I just click on the checkbox to empty the form, it won't empty the form until I fill in a ll of the validation fields.  Is there a way to cancel validation once it has been initiated?