Tryit Editor v1.8

Source Code:
<!DOCTYPE html> <html> <body> <script> if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.open("GET","books.xml",false); xmlhttp.send(); xmlDoc=xmlhttp.responseXML; newel=xmlDoc.createElement("edition"); newtext=xmlDoc.createTextNode("First"); newel.appendChild(newtext); x=xmlDoc.getElementsByTagName("book"); x[0].appendChild(newel); for (i=0;i<x[0].childNodes.length;i++) { if (x[0].childNodes[i].nodeType==1) { document.write(x[0].childNodes[i].nodeName); document.write(": "); document.write(x[0].childNodes[i].childNodes[0].nodeValue); document.write("<br>"); } } </script> </body> </html>
Result:
W3Schools.com - Try it yourself