[jQuery] urgent json parsing error!!!! very important

[grand_unifier]

<!-- this is the javascript json parser function -->

    <script type="text/javascript" src="../jquery-1.2.6.min.js">
    </script>

    <script type="text/javascript">

    $(document).ready(function()
     {
                $('form#search').bind("submit", function(e)
                {
                        e.preventDefault();
                        $('#content').html('');

                        var query1 = urlencode($('input[name="user_a"]').val
()); //userA
                        var query2 = urlencode($('input
[name="user_b"]').val()); //userB


                        $.getJSON('http://twitter.com/friendships/exists.json?
user_a='+query1+'&user_b='+query2,
                        function(data)
                        {


                                  if(data.text == 'true')
                                    {
                                      var newDiv = '<p>true</p>';
                                    }

                             $('#content').append(newDiv);

                                });
                        });
                });

          function urlencode(str) {
            return escape(str).replace(/\+/g,'%2B').replace(/%20/g,
'+').replace(/\*/g, '%2A').replace(/\//g, '%2F').replace(/@/g, '%40');
          }
    });

    </script>

<!-- javascript ends here -->

i dont understand wats wron wth this code...could anyone plz correct
it....plz....its very frustratin...
any help wil be appreciated...