<!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();
// Check if the next sibling node is an element node
function get_nextsibling(n) {
var x = n.nextSibling;
while (x.nodeType != 1) {
x = x.nextSibling;
}
return x;
}
function myFunction(xml) {
var xmlDoc = xml.responseXML;
var x = xmlDoc.getElementsByTagName("title")[0];
var y = get_nextsibling(x);
document.getElementById("demo").innerHTML = x.nodeName + " = " +
x.childNodes[0].nodeValue +
"<br>Next sibling: " + y.nodeName + " = " +
y.childNodes[0].nodeValue;
}
</script>
</body>
</html>