datepicker_demo.htm
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>Date Picke Demo</title>
<script type="text/javascript" src="jquery-1.8.1.js"></script>
<script type="text/javascript" src="jquery-ui-1.8.23.custom.min.js"></script>
<script type="text/javascript" src="test.js"></script>
<script type="text/javascript">
$(window).load(function() {
var myBirthday = new Date(1981,08,05);
//$("#dpBirthday").datepicker('setDate', myBirthday);
});
function getDate(){
alert($("#dpBirthday").val());
}
</script>
</head>
<body>
<div>Birthday : <input type="text" id="dpBirthday" readonly="readonly" style="width: 80px;" /> </div>
<div><input type="button" value="get date" onclick="getDate()"/></div>
</body>
</html>
test.js
$(function() {
$("#dpBirthday").datepicker({
changeMonth : true,
changeYear : true,
dateFormat : 'yy-mm-dd'
});
});