// check if an element is in a (or is an) XML document
isXMLDoc: function( elem ) {
return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
// check if an element is in a (or is an) XML document
isXMLDoc: function( elem ) {
return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||