difficulty doing form submit with jquery formwizard

difficulty doing form submit with jquery formwizard

What is the appropriate way to do an ajax submit with the jquery formwizard.  I have seen docs, but can't seem to put the pieces together.

Right now i am firing the ajax request via the "beforeSubmit" callback, but this seems to be causing 2 requests to be sent to the server (the ajax request AND the action specified in the <form> tag.)