<html>
<head>
<script src="/demo/loadxmldoc.js">
</script>
</head>
<body>
<script>
xmlDoc=loadXMLDoc("books.xml");
x=xmlDoc.getElementsByTagName("title");
x[0].setAttribute("edition","first");
document.write("Edition: ");
document.write(x[0].getAttribute("edition"));
</script>
</body>
</html>