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<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>ÎÞ±êÌâÒ³</title>
    <script type="text/javascript">
    function onLoad()
    {
        document.getElementById( "myDiv" ).attachEvent( "onclick", on_myDivClick );
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    function onUnLoad()
    {
        document.getElementById( "myDiv" ).detachEvent( "onclick", on_myDivClick );
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    function on_myDivClick( e )
    {
        if( !e ) e = window.event;
        alert( "event: " + e.type + ", fromElement = " + e.srcElement.id );
    }
    </script>
</head>
<body onload="onLoad()" onunload="onUnLoad()">
<div id="myDiv">
    <input type="button" id="btn1" value="button1" />
    <input type="button" id="btn2" value="button2" />
</div>
</body>
</html>


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window.onbeforeunload = function (evt) {
var message = 'Are you sure you want to leave?';
if (typeof evt == 'undefined') {
evt = window.event;
}
if (evt) {
evt.returnValue = message;
}
return message;

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if(num <= 2){
return 1;
}else{
return Fibonacci(num - 1) + Fibonacci(num - 2)
}
}
var counter1 = new Counter();
Fibonacci(30);
counter1.show()
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mso-generic-font-family:auto;
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