<?xml-stylesheet href="css3-modsel-d5a.css" type="text/css"?>
<test>

 <div xmlns="http://www.w3.org/1999/xhtml">

  <script type="text/javascript">
   <![CDATA[

    function test() {
      /* Technically not part of DOM1 HTML but Tantek assures me that
      is an oversight... */
      document.getElementById("test").indeterminate = true;
    }

    window.setTimeout("test()", 100);
   ]]>
  </script>

  <p> <input id="test" type="checkbox"></input> This checkbox should have a green background. </p>

 </div>

</test>