The Tor Browser / file revision

 <?xml version="1.0"?>

 <window id="list-testcase" title="Testcase"

         xmlns:html="http://www.w3.org/1999/xhtml"

         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"

         class="reftest-wait">

 <script>

 function fill() {

   var list = document.getElementById('list');

   for (var i = 1; i != 6; i++) {

     list.appendItem("Item " + i, "");

   }

 }

 function dotest() {

   fill();

   var list = document.getElementById('list');

   list.ensureIndexIsVisible(4);

   list.selectItem(list.getItemAtIndex(4));

   setTimeout("document.documentElement.className = ''", 0);

 }

 window.addEventListener("load", dotest, false);

 </script>

 <listbox id="list" rows="3" seltype="single">

 </listbox>

 </window>