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