jquery 1.4.2 - $post - memory and handles grows up on IE 7/8- memory grows up in firefox and opera

jquery 1.4.2 - $post - memory and handles grows up on IE 7/8- memory grows up in firefox and opera

Hi,

I've switched to the new version of jquery and get trouble with ajax ($post). I see in the taskmanager of windows on every ajax call there are 2 handles lost and the memory usage of the browers grows up. With jquery 1.3.2 there are no problems.
Is there a solution?

Regards
Dirk

I'm using
apache 2.2.14 (win32)
php 5.2.13 (cli)
jquery 1.4.2

code:
1) test_post.html
2) test_post.php
  1. <!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">
        <title>test post</title>
    <!--   
        <script type="text/javascript" src="jqs/jquery-1.3.2.min.js"></script>
        <script type="text/javascript" src="jqs/jquery.json-2.2.js"></script>
       -->

        <script type="text/javascript" src="jqs/jquery-1.4.2.min.js"></script>
        <script type="text/javascript" src="jqs/jquery.json-2.2.js"></script>
       
        <script type="text/javascript">
           
            $(document).ready(function(){
                $('#start').bind("click",function(){
                    $.post("test_post.php", { name: "John", time: "2pm" },function(data){
                        $("#out").text(data.name + " " + data.time);
                    },'json');
                });
            });
        </script>
    </head>
    <body>
        <button id='start'>Start</button>
        <br/>
        <br/>
        <br/>
        <span id="out"></span>
        </body>
    </html>






























  2. <?php
    session_start();
    $t->name = $_POST['name'];
    $t->time = $_POST['time'];
    echo json_encode($t);

    ?>