trigger send mail with Ajax not working

[eluser]elaniobro[/eluser]
view:

Code:

<div class="popup-container" id="contact-container">
                        <div class="watermark">
                            &lt;?=img(array('src'=>'img/footer/trybuch_contact_a.png','alt'=>'contact'));?&gt;
                        </div>
                        <div class="close">
                            &lt;?= anchor('',
                                        img(array(
                                                  'src'=>'img/nav/nav_close_a.gif',
                                                  'id'=>'contactBack',
                                                  'border'=>'0',
                                                  'alt'=>'Close'
                                                  )
                                            ),
                                        array(                                          
                                              'onmouseover'=>'contactBack'.'.src='."'".base_url().'img/nav/nav_close_b.gif'."'".';'.'"',
                                              'onmouseout'=>'contactBack'.'.src='."'".base_url().'img/nav/nav_close_a.gif'."'".';'.'"'
                                              )
                                        );
                             ?&gt;
                        
                        </div>
                        <div class="clear"></div>
                            <div id="contact-form">
                                <div class="title">
                                    &lt;?= img(array('src'=>'img/footer/contact/trybuch_title_contact.gif','alt'=>'Contact Form'));?&gt;
                                </div>
                                &lt;?= form_open('email/send');?&gt;
                                
                                <p>&lt;input&gt;&lt;label class="contact-label">email</label></p>
                                <p>&lt;input&gt;&lt;label class="contact-label">full name</label></p>
                                <p>&lt;input&gt;&lt;label class="contact-label">subject</label></p>
                                <p>&lt;textarea&gt;So tell me what is on your mind....&lt;/textarea&gt;&lt;/p>
                                &lt;?= form_submit('submit','Send','id="submit"');?&gt;
                                &lt;?= form_close();?&gt;
                                &lt;?= validation_errors('<p class="contact-error">');?&gt;
                            </div>
                    </div>
                    [removed]
                        $('#submit').click(function()
                        {

                            var contact_data =
                            {
                                fullName: $('#fullName').val(),
                                email: $('#email').val(),
                                subject: $('#subject').val(),
                                message: $('#message').val(),
                                ajax: '1'
                                
                            };
                        
                            $.ajax({
                                url: "&lt;?php echo site_url('email/send');?&gt;",
                                type: 'POST',
                                data: contact_data,
                                success: function(msg){
                                    $('#contact-container').html(msg);
                                }
                            });
                            return false;
                            
                        });
                    [removed]