This is a heading
This is a paragraph.
This is another paragraph.
Probeersel</titel>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="twentytwenty.js"></script>
<script>
$(window).load(function() {
$("#container1").twentytwenty();
});
</script>
</head>
<body>
<!-- hier je plaatjes, bijvoorbeeld:-->
<div id="container1">
<img src="http://i59.photobucket.com/albums/g307/_fairyland_/Walibi/100_2417.jpg">
<img src="http://i59.photobucket.com/albums/g307/_fairyland_/Walibi/100_2416.jpg">
</div>
</body>
</html>
</body>
</html>