foreach($this->piVars['oevent'] as $ouid => $status) {
   $check = $GLOBALS['TYPO3_DB']->sql_query( 'select * from events where hidden=0 and deleted=0 and link='.$ouid.' and pid='.$eventlist.' and memberid='.$this->fe_user_data['uid'] );
   $anzahl = $GLOBALS['TYPO3_DB']->sql_num_rows($check);
 
   $oldevent = $GLOBALS['TYPO3_DB']->sql_query( 'select * from events where hidden=0 and deleted=0 and pid='.$eventlist.' and uid='.$ouid );
   $newevent = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($oldevent);     
 
   if($status == 'ja' and $anzahl == 0) {                        
      $newevent['link'] = $ouid;                        
      $insert = $GLOBALS['TYPO3_DB']->exec_INSERTquery('events',$newevent);
   }
}