I want a jQuery form submit handler to respect any previous submit handlers, including ones added with onsubmit.

I'm trying to detect the previous handler's return value but can't seem to do it:

<form><input type="submit" /></form>
<script type="text/javascript">
$('form')[0].onsubmit = function() { return false; }; // called first
$('form').submit(function(e) {
  console.log(e.result); // undefined
  console.log(e.isDefaultPrevented()); // false
  console.log(e.isPropagationStopped()); // false
  console.log(e.isImmediatePropagationStopped()); // false
});
</script>

Is there a way to do this?