code: function (data) {
              // already a xml
              if (data.documentElement) {
                  return data;
              }
              var xml;
              try {
                  // Standard
                  if (win.DOMParser) {
                      xml = new DOMParser().parseFromString(data, 'text/xml');
                  } else {
                      // IE
                      /*global ActiveXObject*/
                      xml = new ActiveXObject('Microsoft.XMLDOM');
                      xml.async = false;
                      xml.loadXML(data);
                  }
              } catch (e) {
                  logger.error('parseXML error :');
                  logger.error(e);
                  xml = undef;
              }
              if (!xml || !xml.documentElement || xml.getElementsByTagName('parsererror').length) {
                  util.error('Invalid XML: ' + data);
              }
              return xml;
          }
docs: get xml representation of data
  @param {String} data
  @member KISSY