Tryit Editor v1.8

Source Code:
<!DOCTYPE html> <html> <head> <script src="loadxmldoc.js"> </script> </head> <body> <script> xmlDoc=loadXMLDoc("books.xml"); newel=xmlDoc.createElement("edition"); newtext=xmlDoc.createTextNode("first"); newel.appendChild(newtext); x=xmlDoc.getElementsByTagName("book")[0]; x.appendChild(newel); //Output title and edition document.write(x.getElementsByTagName("title")[0].childNodes[0].nodeValue); document.write(" - Edition: "); document.write(x.getElementsByTagName("edition")[0].childNodes[0].nodeValue); </script> </body> </html>
Result:
W3Schools.com - Try it yourself