/**
  * copy data from another script
  * 
  * @param Expressomail_Sieve_Backend_Abstract $_scriptToCopyFrom
  */
 public function getDataFromScript(Expressomail_Sieve_Backend_Abstract $_scriptToCopyFrom)
 {
     $this->_vacation = $_scriptToCopyFrom->getVacation();
     $this->_rules = $_scriptToCopyFrom->getRules();
 }