jQuery Full Screen Facebook Like

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <title>jaspreetchahal.org</title>
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
    </head>
    <body >
    <a href="javascript:void(0)" id="fullscreen">full screen</a>
    <script>
    $("#fullscreen").bind("click", function() {
    var elem = document.getElementById("img"),
    req = elem.requestFullScreen || elem.webkitRequestFullScreen || elem.mozRequestFullScreen ;
    req.call(elem);
    });
    </script>
    <img src="/path/to/your/img" id="img" />
    </body>
    </html>