检测用户按键_javascript技巧

<script language="JavaScript"> <!-- var hotkey=97 var destination="http://www.jb51.net" if (document.layers) document.captureEvents(Event.KEYPRESS) function backhome(e){ if (document.layers){ if (e.which==hotkey) window.location=destination; } else if (document.all){ if (event.keyCode==hotkey) window.location=destination; } } document.onkeypress=backhome onkeydown="javascriptnenter();" function onenter(){ if(event.keyCode==13){ alert("回车"); } } </script>
[Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]