<html>
<!--//this code by hongseheike-->
<head>
<script language="javascript">
ns4 = (document.layers) ? true : false;
ie4 = (document.all) ? true : false;
function keydown(e){
if(ns4){
var nkey=e.which;
var iekey='现在是ns浏览器';
var realkey=string.fromcharcode(e.which);
}
if(ie4){
var iekey=event.keycode;
var nkey='现在是ie浏览器';
var realkey=string.fromcharcode(event.keycode);
if(event.keycode==32){realkey='\' 空格\''}
if(event.keycode==13){realkey='\' 回车\''}
if(event.keycode==27){realkey='\' esc\''}
if(event.keycode==16){realkey='\' shift\''}
if(event.keycode==17){realkey='\' ctrl\''}
if(event.keycode==18){realkey='\' alt\''}
}
alert('ns浏览器中键值:'+nkey+'\n'+'ie浏览器中键值:'+iekey+'\n'+'实际键为'+realkey);
}
document.onkeydown = keydown;
if(ns4){
document.captureevents(event.keydown);}
</script>
</head>
<body>
//javascript document
<hr>
<center>
<h3>请按任意一个键。。。。</h3>
</center>
</body>
</html>