contract escrow {
  mapping (uint => Holding) public holdings;
  uint public numHoldings;
  address god;
  bool killable = true;

  struct Holding {
    uint amount;
    address receiver;
    bool unSpent;
    Signer[] signers;
  }
  struct Signer {
    address userAddress;
    bool hasSigned;
  }

  function escrow(){
    god = msg.sender;
  }

  function holdCoin(address _receiver, address[] _signers){
    numHoldings++;

    holdings[numHoldings].amount = msg.value;
    holdings[numHoldings].receiver = _receiver;
    holdings[numHoldings].unSpent = true;

    for(uint i = 0; i < _signers.length; i++){
      holdings[numHoldings].signers.push(Signer({userAddress: _signers[i], hasSigned: false}));
    }
  }

  function signRelease(uint holdingID){
    Holding memory holding;
    holding = holdings[holdingID];
    if(holdings[holdingID].unSpent == true){
      bool readyForRelease = true;

      for(uint i = 0; i <= holding.signers.length; i++){
        if(holding.signers[i].userAddress == msg.sender){
          holding.signers[i].hasSigned = true;
        }
        else if(holding.signers[i].hasSigned == false){
          readyForRelease = false;
        }
      }

      if(readyForRelease){
        holdings[holdingID].unSpent = false;
        if(holdings[holdingID].receiver.send(holdings[holdingID].amount))
            throw;
      }
    }
  }

  function imortilize(){ if(msg.sender == god){killable = false;}}
  function kill(){ if(msg.sender == god && killable )suicide(god);}
}