unload in firefox
<p>I have a client register startup script like so:</p>

<blockquote>
  <p>" " +
                                      "document.body.onunload =
  clearSession; " +
                                  "";</p>
</blockquote>

<p>The script works fine in IE8 by calling the clearSession() client script but not with firefox. can anyone help please?</p>

<p>thanks</p>
