function createXmlHttpRequestObject()
{
  var xmlHttp;
  try
  {
     xmlHttp = new XMLHttpRequest();
  }
  catch(e)
  {
    var XmlHttpVersions = new Array("MSXML2.XMLHTTP.6.0",
                                    "MSXML2.XMLHTTP.5.0",
                                    "MSXML2.XMLHTTP.4.0",
                                    "MSXML2.XMLHTTP.3.0",
                                    "MSXML2.XMLHTTP",
                                    "Microsoft.XMLHTTP");
     for (var i=0; i<XmlHttpVersions.length && !xmlHttp; i++)
    {
      try
      {
        xmlHttp = new ActiveXObject(XmlHttpVersions[i]);
      }
      catch (e) {}
    }
  }
  if (!xmlHttp)
    return false;
  else
    return xmlHttp;
}

function process_links(metodo,endereço,div,loadimgpath)
{
  if (xmlHttp)
  {
    try
    {
      // remove this line if you don't like the 'Receiving...' message
      var myDiv = document.getElementById(div);
      myDiv.InnerHtml = "<img src="+loadimgpath+" id='loading' />";
      // make asynchronous HTTP request to retrieve new message
      xmlHttp.open(medoto, serverAddress, true);
      xmlHttp.onreadystatechange = handleServerResponse;
      xmlHttp.send(null);
    }
    catch(e)
    {
      return false;
    }
  }
}
function handleRequestStateChange()
{
  if (xmlHttp.readyState == 4)
  {
    if (xmlHttp.status == 200)
    {
      try
      {
        handleServerResponse(div);
      }
      catch(e)
      {
        return false;
      }
    }
    else
    {
      return false;
    }
  }
}

function handleServerResponse()
{
  
  var Response = xmlHttp.responseText;
  
  if (!Response || !Response.documentElement)
    return false;
  myDiv.innerHTML = Response;
}