randominteger

<html>
	<head>
	   <style type="text/css">
	html body{
    margin:0;
    padding:0;
    background-color:black;
    font-family:"Helvetica Neue", Helvetica, Arial, sans-serif;

		}
		</style>
		<script src="//code.jquery.com/jquery-1.11.0.min.js"></script>
<script src="//code.jquery.com/jquery-migrate-1.2.1.min.js"></script>
		<script type="text/javascript">
			var sites = ["http://machinemachine.net/gifbites/bitrates/friend.html", "http://machinemachine.net/gifbites/bitrates/vortex.html", "http://machinemachine.net/gifbites/bitrates/turntable.html"]
			$(document).ready(function() {
				newPage();
			});
			function newPage(min, max)
			{
				setTimeout(newPage, 20000);
				var num = Math.floor(Math.random() * (max - min + 1)) + min;
				if (num < 0.5)
				{
					$('#target').attr('src',sites[0]);
				}
				else
				{
					$('#target').attr('src',sites[1]);
				}
			}
		</script>

	</head>
	<body>
		<iframe id="target" width="100%" height="100%" frameBorder="0" seamless="seamless" marginwidth="0" marginheight="0" align="top" scrolling="No" frameBorder="0" hspace="0" vspace="0"/>
	</body>
</html>