'tab_log_locks', 'class' => 'tab-content', 'label' => __('Access Locks', 'advanced-google-recaptcha'), 'callback' => array(__CLASS__, 'tab_locks'));
        $tabs[] = array('id' => 'tab_log_full', 'class' => 'tab-content', 'label' => __('Failed Logins', 'advanced-google-recaptcha'), 'callback' => array(__CLASS__, 'tab_full'));
        echo '
';
        echo '
';
        foreach ($tabs as $tab) {
            if (is_callable($tab['callback'])) {
                echo '
';
                call_user_func($tab['callback']);
                echo '
';
            }
        } // foreach
        echo '
 '; // second level of tabs
    } // display
    static function tab_locks()
    {
        echo '';
        echo '';
            echo '
 . '/images/advanced_stats.png)
';
        echo'
 ';
        echo '';
            echo '
                    
                        
                            
                                 | 
                                Date & time | 
                                Reason | 
                                Location/IP | 
                                User Agent | 
                                 | 
                            
                        
                        
                        
                            
                                 | 
                                Date & time | 
                                Reason | 
                                Location/IP | 
                                User Agent | 
                                 | 
                            
                        
                    
                 
                 Empty Access Locks Log
';
        echo '
 ';
    }
    static function tab_full()
    {
        echo '';
        echo '';
            echo '
 . '/images/advanced_stats.png)
';
        echo'
 ';
        echo '';
            echo '
                    
                        
                            
                                | Date & time | 
                                User/Pass | 
                                Location/IP | 
                                User Agent | 
                                Reason | 
                                 | 
                            
                        
                        
                        
                            
                                | Date & time | 
                                User/Pass | 
                                Location/IP | 
                                User Agent | 
                                Reason | 
                                 | 
                            
                        
                    
                 
                 Empty Failed Logins Log
';
        echo '
 ';
    }
} // class WPCaptcha_Tab_Activity