JQuery help

JQuery help

Please, can someone help me, I have a code for an animation but animation cannot start. I cannot see the problem?
For example
JQuery code:

$(document).ready(function(){
    $('img').click(function(){
   $('img').animate( {left: 600}, 'slow', function(){
$('img').fadeTo('slow',0);
$('img').fadeTo('slow',1);
$('img').animate({left: 0}, 'slow');
}
);
});
HTML code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
 
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> 
  <head> 
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> 
        <title>JQuery Examples</title> 
        <link rel="stylesheet" href="new3.css" type="text/css" media="screen" /> 
        <script src="jquery-1.4.2.js" type="text/javascript"></script>   
        <script src="new4.js" type="text/javascript"></script> 
  </head> 
 <body>

    <h2>Scrolling image</h2>
    <img src="cell.jpg" />
 </body>
 </html>
css code:

img{
position:relative;
}

Thanks in advance