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<html>
<head>
<script type="text/javascript" src="js/jquery-1.3.2.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$(window).keydown(function(event){
alert(event.keyCode);
switch (event.keyCode) {
}
});
});
</script>
</head>
<body>
<body>
<p><input type="text" /> <span>focus event fire</span></p>
</body>
</html>
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