Remove caveat about running ssi on httpd 1.2

    the option of setting variables, and using those variables in

    comparisons and conditionals.</p>

<section id="caveat"><title>Caveat</title>

    <p>Most of the features discussed in this article are only

    available to you if you are running Apache 1.2 or later. Of

    course, if you are not running Apache 1.2 or later, you need to

    upgrade immediately, if not sooner. Go on. Do it now. We'll

    wait.</p>

</section>

<section id="variables"><title>Setting variables</title>

    <p>Using the <code>set</code> directive, you can set variables