Datepicker won't initialize with a default date on load

Datepicker won't initialize with a default date on load


<html>
<head>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script src="datepicker.js"></script>
<script>
    $(document).ready(function(){
        $('#example').datepicker({
            setDate: new Date('2008','12','10'),
            showOn: 'button',
            buttonImage: '/includes/jscript/jquery/css/images/calendar.gif',
            buttonImageOnly: true
        });
    });
</script>
</head>
<body>

<input type="text" id="example" style="width:300px;"/>


</body>
</html>
Above is my code, and the date field is loaded as empty without a
default date although I specified setDate. Any help is appreciated.