function rename($old_name, $new_name)
 {
     $old_name = RheinaufFile::get_enc($old_name);
     $new_name = RheinaufFile::get_enc($new_name);
     if (defined('USE_FTP') && USE_FTP === true) {
         RheinaufFile::ftpcmd("ftp_rename(\$conn_id,'" . RheinaufFile::server2ftppath($old_name) . "','" . RheinaufFile::server2ftppath($new_name) . "');");
     } else {
         rename($old_name, $new_name);
     }
 }
 function rename($old_name, $new_name)
 {
     if (USE_FTP) {
         RheinaufFile::ftpcmd("ftp_rename(\$conn_id,'" . RheinaufFile::server2ftppath($old_name) . "','" . RheinaufFile::server2ftppath($new_name) . "');");
     } else {
         rename($old_name, $new_name);
     }
 }