function downloadLinks() {
      var oXmlHttp = zXmlHttp.createRequest();
      
      oXmlHttp.open("get", "AdditionalLinks.txt", true);
      oXmlHttp.onreadystatechange = function () {
          if (oXmlHttp.readyState == 4) {
              if (oXmlHttp.status == 200) {
                  var divAdditionalLinks = document.getElementById("divAdditionalLinks");
                  divAdditionalLinks.innerHTML = oXmlHttp.responseText;  
                  divAdditionalLinks.style.display = "block";          
              } 
          }    
      }
      oXmlHttp.send(null);
  }
  
  window.onload = function () {
      if (zXmlHttp.isSupported()) {        
          downloadLinks();                  
      }
  };