public static function display_page()
 {
     global $wpdb;
     $arr = array('carrental-fleet', 'carrental-extras', 'carrental-branches', 'carrental-pricing', 'carrental-booking', 'carrental-translations', 'carrental-settings', 'carrental-newsletter', 'carrental-fleet-parameters');
     // Branches
     if ($_GET['page'] == 'carrental-fleet') {
         $tpl = array('fleet' => self::get_fleet(), 'vehicle_categories' => self::get_vehicle_categories(), 'extras' => self::get_extras(), 'branches' => self::get_branches(), 'pricing' => self::get_pricing('p.`name` ASC', 2), 'params' => self::get_fleet_parameters(true), 'params_values' => array());
         if (isset($_GET['edit']) && !empty($_GET['edit'])) {
             $tpl['detail'] = self::get_fleet_detail((int) $_GET['edit']);
             $tpl['params_values'] = self::get_fleet_parameter_values((int) $_GET['edit']);
             $tpl['edit'] = true;
             $all_additional_parameters = array();
             $sql = $wpdb->get_results('SELECT `additional_parameters` FROM `' . CarRental::$db['fleet']);
             foreach ($sql as $s) {
                 $params = unserialize($s->additional_parameters);
                 if (!empty($params)) {
                     foreach ($params as $lng => $p) {
                         if (!is_array($p)) {
                             continue;
                         }
                         if (!isset($all_additional_parameters[$lng])) {
                             $all_additional_parameters[$lng] = array();
                         }
                         foreach ($p as $pp) {
                             if (!isset($pp['name'])) {
                                 continue;
                             }
                             $all_additional_parameters[$lng][$pp['name']] = $pp['name'];
                         }
                     }
                 }
             }
             $tpl['all_additional_parameters'] = $all_additional_parameters;
         }
         CarRental::view($_GET['page'], $tpl);
     } elseif ($_GET['page'] == 'carrental-extras') {
         $tpl = array('extras' => self::get_extras(), 'pricing' => self::get_pricing('p.`name` ASC'));
         $tpl['edit'] = false;
         if (isset($_GET['edit']) && !empty($_GET['edit'])) {
             $tpl['detail'] = self::get_extras_detail((int) $_GET['edit']);
             $tpl['edit'] = true;
         }
         CarRental::view($_GET['page'], $tpl);
     } elseif ($_GET['page'] == 'carrental-branches') {
         $tpl = array('branches' => self::get_branches());
         $tpl['edit'] = false;
         if (isset($_GET['edit']) && !empty($_GET['edit'])) {
             $tpl['detail'] = self::get_branch_detail((int) $_GET['edit']);
             $tpl['edit'] = true;
         }
         CarRental::view($_GET['page'], $tpl);
     } elseif ($_GET['page'] == 'carrental-pricing') {
         $tpl = array('pricing' => self::get_pricing());
         $tpl['edit'] = false;
         if (isset($_GET['edit']) && !empty($_GET['edit'])) {
             $tpl['detail'] = self::get_pricing_detail((int) $_GET['edit']);
             $tpl['edit'] = true;
         }
         CarRental::view($_GET['page'], $tpl);
     } elseif ($_GET['page'] == 'carrental-booking') {
         $tpl = array('booking' => self::get_booking(), 'branches' => self::get_branches(), 'fleet' => self::get_fleet());
         $tpl['edit'] = false;
         if (isset($_GET['edit']) && !empty($_GET['edit'])) {
             $tpl['detail'] = self::get_booking_detail((int) $_GET['edit']);
             $tpl['edit'] = true;
         }
         CarRental::view($_GET['page'], $tpl);
     } elseif ($_GET['page'] == 'carrental-translations') {
         include dirname(realpath(__FILE__)) . '/languages.php';
         $tpl = array('languages' => $languages);
         if (isset($_GET['language']) && !empty($_GET['language'])) {
             $tpl['translations_theme'] = self::get_theme_translations($_GET['language']);
         }
         CarRental::view($_GET['page'], $tpl);
     } elseif ($_GET['page'] == 'carrental-settings') {
         self::auto_check_plugin_update();
         $tpl = array('vehicle_categories' => self::get_vehicle_categories(), 'pricing' => self::get_pricing('p.`name` ASC'));
         CarRental::view($_GET['page'], $tpl);
     } elseif ($_GET['page'] == 'carrental-newsletter') {
         $tpl = array('newsletter' => self::get_newsletter());
         CarRental::view($_GET['page'], $tpl);
     } elseif ($_GET['page'] == 'carrental-fleet-parameters') {
         $tpl = array('params' => self::get_fleet_parameters(), 'types' => self::$fleet_parameter_types);
         if (isset($_GET['edit']) && !empty($_GET['edit'])) {
             $tpl['detail'] = self::get_fleet_parameter_detail((int) $_GET['edit']);
             $tpl['edit'] = true;
         }
         CarRental::view($_GET['page'], $tpl);
     } else {
         $tpl = array('quick_info' => self::get_quick_info());
         if (isset($_GET['deleted'])) {
             $tpl['deleted'] = self::get_deleted_items();
         }
         CarRental::view('carrental', $tpl);
     }
 }