r></b>
    to
    <b><var>&lt;ext&gt;</var><var>&lt;XXXXXXXXXX&gt;</var>.<var>&lt;ext&gt;</var></b>
    where <var>&lt;XXXXXXXXXX&gt;</var> is a random string.  For example,
    a jpeg image in the older format would have a filename like
    "<tt>jpg00001.jpg</tt>", and in the new style, it would be something
    like "<tt>jpgAOMySzCNIE.jpg</tt>".  </p>

    <p>The change should be transparent and was done to provide support
    for the <a href="resources/attachmentdir.html">ATTACHMENTDIR</a>
    resource a