Update access map v4

ajax/read/index.php

@@ -13,6 +13,8 @@ if (isset($_GET['function'])) {
         get_enigma_code();
     elseif ($_GET['function'] == "get_plaquette_code")
         get_plaquette_code();
+    elseif ($_GET['function'] == "get_map_selectors")
+        get_map_selectors();
 } else
     show_error();