title: submit form when elements change
body: <p>In jQuery, if I assign <code>class=auto_submit_form</code> to a form, it will be submitted whenever any element is changed, with the following code:</p>
  
  <pre><code>/* automatically submit if any element in the form changes */
  $(function() {
    $(".auto_submit_form").change(function() {
      this.submit();
    });
  });
  </code></pre>
  
  <p>However, if I want to the form to submit only when specified elements are changed:</p>
  
  <pre><code>/* submit if elements of class=auto_submit_item in the form changes */
  $(function() {
    $(".auto_submit_item").change(function() {
      $(this).parents().filter("form").submit();
    });
  });
  </code></pre>
  
  <p>I'm just learning jQuery. Is there a better way to do this?</p>