<!DOCTYPE html>
<html>
<head>
<script src="/lib/jquery-1.12.2.min.js"></script>
<script>
$(document).ready(function(){
$(document).ajaxSuccess(function(e, xhr, opt){
if (opt.url == "demo_ajax_load.txt") {
alert("AJAX request successfully completed");
};
});
$("button").click(function(){
$("div").load("demo_ajax_load.txt");
});
});
</script>
</head>
<body>
<div><h2>Let AJAX change this text</h2></div>
<button>Change Content</button>
</body>
</html>