function _returnStartJackpot() private { 
		
		if(JACKPOT > start_jackpot_amount * 2 || (now - CONTRACT_STARTED_DATE) > return_jackpot_period) {
			
			if(JACKPOT > start_jackpot_amount) {
				ADDRESS_START_JACKPOT.transfer(start_jackpot_amount);
				JACKPOT = JACKPOT - start_jackpot_amount;
				start_jackpot_amount = 0;
			} else {
				ADDRESS_START_JACKPOT.transfer(JACKPOT);
				start_jackpot_amount = 0;
				JACKPOT = 0;
			}
			emit UpdateJackpot(JACKPOT);
			
		} 
		return;
	}