<script> function whichButton(e) { document.getElementById("1").innerHTML=e.keyCode; } </script> <body onkeydown="whichButton(event)"><div id="1"></div></body>
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<script> function whichButton(e) { document.getElementById("1").innerHTML=e.keyCode; } </script> <body onkeydown="whichButton(event)"><div id="1"></div></body>