func: function issueCoin(address _to, uint _value, uint _totalSupply) checkAccess("currencyOwner") returns (bool) {
          if (totalSupply > 0) {
              Error(6, tx.origin, msg.sender);
              return false;
          }
  
          bool dep = _db().deposit(_to, _value, 0, 0);
          totalSupply = _totalSupply;
          return dep;
      }