here's my script
<html>
<head>
<script src="http://www.w3schools.com/lib/w3data.js"></script>
<style>
div {
position: relative;
z-index: 9999;
}
</style>
</head>
<body>
<div w3-include-html="N.html"></div>
<script>
w3IncludeHTML();
</script>
</body>
</html>