var xmlHttpNav;

  function createXMLHttpRequest() 
  {
    if (window.ActiveXObject) 
    {
      xmlHttpNav = new ActiveXObject("Microsoft.XMLHTTP");
    } 
    else if (window.XMLHttpRequest) 
    {
      xmlHttpNav = new XMLHttpRequest();
    }
  }

  function goCallback() 
  {
    if (xmlHttpNav.readyState == 4) 
    {
      if (xmlHttpNav.status == 200) 
      {
         var navtext = xmlHttpNav.responseText;
         document.getElementById('navcomponent').innerHTML = navtext;
      }
    }
  }

  createXMLHttpRequest();
  xmlHttpNav.open("GET", "/include/nav2.php?phpself=" + phpself, true);
  xmlHttpNav.onreadystatechange = goCallback;
  xmlHttpNav.send(null);