Problema commentbox ( javascript )

<script src="http://ajax.googleap.../jquery.min.js" type="text/javascript" charset="utf-8"></script>

<script type="text/javascript">

$('#submit').click(function() {

var name = $('#name').val().replace(/[^\w\d ]+/gi, ''),
email = $('#email').val().match(/^([a-zA-Z0-9_\-\.]+)@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$/i) ? $('#email').val() : null,
comment = $('#comment').val();

if(name.length < 2 || comment.length < 4 || email === null) {
if($('.error').length === 0) {
$('form').append('<p class="error">Please fill out each field.</p>');
}
return false;
}

$.post(
'leaveComment.php', {

'name' : name,
'email' : email,
'comment' : comment
},

function® {
$('.error').fadeOut(200);

$('<div class="overlay"></div>')
.appendTo('#comments')
           .fadeIn(1000, function() {
       $('#comments')
          .append('<li>' + r + '</li>')
          .children(':last')
      .height($('#comments li:last').height())
      .hide()
      .slideDown(800, function() {
       var bodyHeight = $('html').height();
      $('#addComment').fadeOut(1000, function() {
   $('h2#leaveAComment').fadeOut(200, function(){$(this).text('Thank you for your comment!').fadeIN(200)});
   });
   });
     });
}

); // end post

return false; // disable submit click

});

</script>