Untitled

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>

<link rel="stylesheet" href="css/jquery_ui.css">

<script src="js/jquery.js"></script>
<script src="js/jquery_ui.js"></script>
<script src="js/datepicker.js"></script>

</head>

<body>

<p>Date: <input type="text" id="datepicker" /></p>

</body>
</html>


//This is datepicker.js file

$( function() {
    $( "#datepicker" ).datepicker({
      changeMonth: true,
      changeYear: true,
      yearRange: "c-200:c+200",
      dateFormat: 'yy-mm-dd',
      maxDate: 0
    });
} );