<html>
<head>
<script src="/demo/loadxmldoc.js">
</script>
</head>
<body>
<script>
xmlDoc=loadXMLDoc("books.xml");
x=xmlDoc.getElementsByTagName('book');
document.write(x[0].getAttribute('category'));
document.write("<br>");
x[0].removeAttribute('category');
document.write(x[0].getAttribute('category'));
</script>
</body>
</html>