How to get a xml object in javascript

This function will return a XML object:

function getXMLObject(sXML) {
  var oXMLObject;
  try {
    oXMLObject = new DOMParser().parseFromString(sXML, 'text/xml');
  } catch(e) {
    try {
      oXMLObject = new ActiveXObject('Microsoft.XMLDOM');
      oXMLObject.loadXML(sXML);
    } catch(e) {
    }
  }
  return oXMLObject;
};