title: onchange="javascript: document.my_form.submit()" vs. normal submit
body: <p>I have a select field within a form:</p>
  
  <pre><code>&lt;form id="myform"&gt;
  &lt;select id="value" onchange="javascript: document.myform.submit()"&gt;
      &lt;option&gt;....
  &lt;/select&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>After the form is submitted, it is impossible to use the 'back' button without resubmitting the form.  However, if I use a regular 'submit' button, it is possible.</p>
  
  <p>Is there a way you know of to get this behavior while still being able to use the javascript 'submit()'?</p>
  
  <p>Accessibility is not a concern, having javascript enabled is required to use this site and that is the way the client wants it.</p>