cmail, строка для медитации 10.5
<!DOCTYPE HTML>
<html>
<head>
<title>Untitled</title>
</head>
<body>
<input name="" type="button" value="go" onclick="this.value=numberclick; clickmoreone()">
<script>
document.write('<script>var numberclick=0; function clickmoreone(){ numberclick++; if(numberclick>1) location.reload(); }<\/script>');
</script>
</body>
</html>