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<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<script type="text/javascript">
// generate an enormous random number...
var r = Math.floor(Math.random() * Math.pow(2, 62)).toString();
// ... and use it to set a randomly named cookie
document.cookie = r + "=value; path=/ohai";
</script>
<body>
</body>
</html>