<!DOCTYPE html>
<html>
<body>
<p id="demo"></p>
<script>
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (xhttp.readyState == 4 && xhttp.status == 200) {
myFunction(xhttp);
}
};
xhttp.open("GET", "books.xml", true);
xhttp.send();
function myFunction(xml) {
var x, y, z, i, xLen, yLen, newEle, newText, xmlDoc, txt;
xmlDoc = xml.responseXML;
txt = "";
x = xmlDoc.getElementsByTagName("book");
xLen = x.length;
for (i = 0; i < xLen; i++) {
newEle = xmlDoc.createElement("edition");
newText = xmlDoc.createTextNode("first");
newEle.appendChild(newText);
x[i].appendChild(newEle);
}
// Output all titles and editions
y = xmlDoc.getElementsByTagName("title");
yLen = y.length
z = xmlDoc.getElementsByTagName("edition");
for (i = 0; i < yLen; i++) {
txt += y[i].childNodes[0].nodeValue +
" - Edition: " +
z[i].childNodes[0].nodeValue + "<br>";
}
document.getElementById("demo").innerHTML = txt;
}
</script>
</body>
</html>