<html> <head> <script type="text/javascript" src="/static/demo/html/js/loadxmldoc.js"> </script> </head> <body> <script type="text/javascript"> xmlDoc=loadXMLDoc("/static/demo/xdom/books.xml"); x=xmlDoc.getElementsByTagName('book'); x[0].setAttribute("category","child"); document.write(x[0].getAttribute("category")); </script> </body> </html>