function req(url, tag)
{
  var tag_len = tag.length;
      tag_len = tag_len + 2; //Adding in the < and >
  var ajaxconn = null;
  try
    {
      // Firefox, Opera 8.0+, Safari
      ajaxconn = new XMLHttpRequest();
    }
  catch (e)
    {
      // Internet Explorer
      try
        {
          ajaxconn = new ActiveXObject("Msxml2.XMLHTTP");
        }
    catch (e)
      {
         ajaxconn = new ActiveXObject("Microsoft.XMLHTTP");
      }
    }

  ajaxconn.onreadystatechange = function () {
  if(ajaxconn.readyState==4)
  {
   var responses = ajaxconn.responseText.indexOf('<' + tag + '>');
   var responsee = ajaxconn.responseText.indexOf('</' + tag + '>');
   var response = ajaxconn.responseText.substring(responses+tag_len, responsee);
   
   return response;
  }
  }
  
  ajaxconn.open("GET", url, true);
  ajaxconn.send(null);
}