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NINE / Test-WWW-WebKit-0.02 / t / test / key_press.html 
<!DOCTYPE html>
<html>
    <head>
        <title>test</title>
        <script type="text/javascript">
            document.addEventListener('keyup', function(e) {
                alert(e.keyCode);
            }, false);
        </script>
    </head>
    <body>
    </body>
</html>