Tryit Editor v1.4

<html> <head> <script type="text/javascript" src="loadxmldoc.js"> </script> </head> <body> <script type="text/javascript"> xmlDoc=loadXMLDoc("books.xml"); newatt=xmlDoc.createAttribute("edition"); newatt.nodeValue="first"; x=xmlDoc.getElementsByTagName("title"); x[0].setAttributeNode(newatt); document.write("Edition: "); document.write(x[0].getAttribute("edition")); </script> </body> </html> | Your Result:
Edit the code above and click to see the result. | W3Schools.com - Try it yourself