unable to drag

unable to drag

I am trying to drag an object on a drawn rectangle. I do not know what is wrong I am new to jquery ty very much

  1. <html>
    <head>
    <link type="text/css" rel="stylesheet" href="drag.css">
    <script type='text/javascript' src='drag.js'></script>
    <script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.9.1/jquery-ui.min.js"></script>
    </head>
    <body>
    <div style= "width:500px; height:500px; border:1px solid #000;">

    <img src="images.jpeg" id="car">
       
    </div>


    </body>
    </html> 

  3. my js function

  4. $(document).ready(function(){
    $('#car').draggable();
    });