$file = $_FILES['upload_file'];
     $uploaded = upload_file($file);
     if (strlen($uploaded) == 34) {
         $manager->Upload_Books('../files/' . $uploaded);
         header("Location: ../Librarian.php?page=library_books");
         exit;
     } else {
     }
 }
 if (isset($_POST['upload_cds'])) {
     require_once '../private/File_Manager.php';
     $manager = new File_Manager();
     $file = $_FILES['upload_file'];
     $uploaded = upload_file($file);
     if (strlen($uploaded) == 34) {
         $manager->Upload_CDs('../files/' . $uploaded);
         header("Location: ../Librarian.php?page=library_cds");
         exit;
     } else {
     }
 }
 if (isset($_POST['upload_magazines'])) {
     require_once '../private/File_Manager.php';
     $manager = new File_Manager();
     $file = $_FILES['upload_file'];
     $uploaded = upload_file($file);
     if (strlen($uploaded) == 34) {
         $manager->Upload_Magazines('../files/' . $uploaded);
         header("Location: ../Librarian.php?page=library_magazine");
         exit;
     } else {