func: function makeHash() private returns (bytes32 hash) {
  		for ( uint a = 0 ; a <= prepareBlockDelay ; a++ ) {
  			hash = sha3(hash, games[CurrentGameId].prepareDrawBlock - a);
  		}
  		hash = sha3(hash, block.difficulty, block.coinbase, block.timestamp, tx.origin, games[CurrentGameId].ticketsCount);
  	}