[jQuery] Validate - How do I $.ajax without using the form plugin?

[ButtersRugby]

I am trying to figure out how to submit the form using the $.ajax
call.

How do I make sure my form is valid when submitting via a click event
on a button?

do i put it in the submitHandler of the validation plugin?

submitHandler: function(form) {
    $('mybutton').click(function () {
      $.ajax ({
       //stuff in here?

     })
 }
}

I want to make the form is valid when I click to submit, and do an
ajax form submission. Hopefully without yet another plugin.

Thanks.