Edit in JSFiddle

<input type="text" id="DOB" />
<p>Click the icon next to the input field to show the datepicker</p>
 $(document).ready(function () {
        $("#DOB").datepicker({
            showOn: "button",
            buttonText : "DatePicker",
            buttonImage: "https://lh6.googleusercontent.com/-4mIOpMQ8TMo/UYTIwScsDPI/AAAAAAAABbE/7osEswE2ALQ/h120/calendar.gif",
            buttonImageOnly: true
        });
    });