<h3>This demonstrates a parser error:</h3>

<script>

var xmldoc = null;

function loadxml(filename)

{

    if (window.ActiveXObject) {

        xmldoc = new ActiveXObject("Microsoft.XMLDOM");

        xmldoc.async = false;

        xmlDoc.validateOnParse="true"

        xmldoc.load(filename);

    }

    else if (document.implementation && document.implementation.createDocument)

    {

        var xmlhttp = new window.XMLHttpRequest();

        xmlhttp.open("get", filename, false);

        xmlhttp.send(null);

        var parser = new DOMParser();

        var xmldoc = parser.parseFromString(xmlhttp.responseText, "application/xml");