function getHTTPObject() {
  var xmlhttp;
/*@cc_on
  @if (@_jscript_version >= 5)
  try {
    xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
  } catch (e) {
    try {
      xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    } catch (E) {
      xmlhttp = false;
    }
  }
  @else
    xmlhttp = false;
  @end @*/
  if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
    try {
      xmlhttp = new XMLHttpRequest();
    } catch (e) {
      xmlhttp = false;
    }
  }
  return xmlhttp;
}    

function getNodeValue( doc, name ){
  var value = "";
  var subNode = doc.getElementsByTagName(name);
  if ( subNode && subNode.length>0 && subNode[0].firstChild && subNode[0].firstChild.data )
  {
    value = subNode[0].firstChild.data;
  }
  return value;
}