$(function() { 
  $('#addressForm').submit(function(e) { 
    $('#response').html('Adding email address...'); 
    $.ajax({ 
        url: 'ajaxServer.php', 
        type: 'POST', 
        data: {'address': $('#address').val() }, 
        success: function(response) { 
          $('#response').html(response); 
        } 
    }); 
    e.preventDefault(); 
    return false; 
  });​ 
});