取消一个jQuery Submit（）方法

I have a form which calls an ajax post, using the submit() jquery method:

<script>
  $(document).ready(function(){
    $('#myform').submit(function(){
      submitFunction(); /* does and Ajax post */
      return false;
    });
  });
</script>
<form id="myform" action="thisaction" method="post">
  <!-- ... -->
</form>

Now, the thing is, when that Ajax post succeeds, I want to cancel the jquery override of my form submission, in order to let it do its normal action (thisaction). I already tried this :

/* Inside submitFunction() */

$.ajax({

  /* random data... */

  success: function(jsonData)
           {
              $('#mylogin').submit(function(){
                ;
              });
           }
});

But when I debug it, the submitFunction() is still called after the second submission... How do I disable this and let a normal HTTP post to thisaction occur?

You have to unbind the event.

$('#mylogin').submit(function(){
  $(this).unbind("submit");
});

Here the documentation http://api.jquery.com/unbind/

In the submit handler, before the submitFunction():

$(this).off('submit')

And in the ajax success callback:

$('#myform').submit();

This will unbind the submit handler that returns false and re-submit the form when the ajax callback is called.

You can also try .one() to bind a handler that will only be executed once:

$('#myform').one('submit', function() {...