<!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, newNode, newTitle, newText, xmlDoc, txt;
xmlDoc = xml.responseXML;
txt = "";
x = xmlDoc.documentElement;
// Create a book element, title element and a text node
newNode = xmlDoc.createElement("book");
newTitle = xmlDoc.createElement("title");
newText = xmlDoc.createTextNode("A Notebook");
// Add a text node to the title node
newTitle.appendChild(newText);
// Add the title node to the book node
newNode.appendChild(newTitle);
y = xmlDoc.getElementsByTagName("book")[0];
// Replace the first book node with the new book node
x.replaceChild(newNode, y);
z = xmlDoc.getElementsByTagName("title");
// Output all titles
for (i = 0; i < z.length; i++) {
txt += z[i].childNodes[0].nodeValue + "<br>";
}
document.getElementById("demo").innerHTML = txt;
}
</script>
</body>
</html>