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<head> <title>show </title> </head> <body> <script language="javascript" type="text/javascript"> document.onkeypress = grapkey; document.onirkeypress = grapey; function grapkey(){ var co = event.keyCode; //var co = event.which; switch(co){ case 8: alert("hahah"); break; case 2||270: alert("Down"); break; default: alert(co); break; } } </script> </body>
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