randomizeLEGOAds.php

<html lang="en">
	<head>
		<base target="_blank" />
		<meta http-equiv="refresh" content="120">
		<script language="javascript" type="text/javascript">
			function resizeIframe(obj) {
				obj.style.height = obj.contentWindow.document.body.scrollHeight + 'px';
			}
		</script>
		<style type="text/css">
			html, body {
				margin: 0;
				padding: 0;
			}
		</style>
	</head>
	<body>
	<?php
		$themes = array(
			"starwars",
			"duplo",
			"ninjago",
			"city",
			"friends",
			"creator",
			"easter",
			"", //default
		);
		echo '<iframe width="' . $_GET['size'] . '" src="/showLEGOAffiliateAd.php?theme=' . $themes[array_rand($themes)] . '&size=' . $_GET['size'] . '" scrolling="no" frameborder="0" onload="resizeIframe(this)" allowtransparency="true"></iframe>';
	?>
	</body>
</html>