exit;
 }
 if (isset($_POST['confirm_cd_borrow'])) {
     require_once '../private/LMS_Engine.php';
     $engine = new LMS_Engine();
     $user_id = $_POST['user_id'];
     $cd_id = $_POST['cds_id'];
     $pocket_id = $_POST['pocket_id'];
     $user_type = $_POST['user_type'];
     $The_CD = $engine->get_CDs($cd_id);
     $librarian_id = $_COOKIE['user_id'];
     if ($user_type == "student") {
         $user_type = "S";
         $The_STD = $engine->get_student_by_pid($pocket_id);
         $librarian_id = $_COOKIE['user_id'];
         $stat = $engine->insert_cds_borrows($user_id, $user_type, $cd_id, $librarian_id);
         if ($stat) {
             header("Location: ../Librarian.php?page=search_cd_dvd");
             exit;
         } else {
             header("Location: ../Librarian.php?page=search_cd_dvd");
             exit;
         }
     } else {
         $user_type = "T";
         $librarian_id = $_COOKIE['user_id'];
         $stat = $engine->insert_cds_borrows($pocket_id, $user_type, $cd_id, $librarian_id);
         if ($stat) {
             header("Location: ../Librarian.php?page=search_cd_dvd");
             exit;
         } else {