XPath example from http://www.w3schools.com/xpath/tryit.asp?filename=try_xpath_select_cdnodes

XPath example with IE-specific code.js

// code for IE
if (window.ActiveXObject || xhttp.responseType == "msxml-document") {
    xml.setProperty("SelectionLanguage", "XPath");
    nodes = xml.selectNodes(path);
    for (i = 0; i < nodes.length; i++) {
        document.write(nodes[i].childNodes[0].nodeValue);
        document.write("<br>");
    }
}

// code for Chrome, Firefox, Opera, etc.
else if (document.implementation && document.implementation.createDocument) {
    var nodes = xml.evaluate(path, xml, null, XPathResult.ANY_TYPE, null);
    var result = nodes.iterateNext();

    while (result) {
        document.write(result.childNodes[0].nodeValue);
        document.write("<br>");
        result = nodes.iterateNext();
    }
}