create a list of all child DAOs and its extraBalance account (plus main DAO and its extraBalance account)

createL.js

var address = '0xbb9bc244d798123fde783fcc1c72d3bb8c189413';

// define the dao-contract
var abi  = [
  {name:"getNewDAOAddress", "type":"function","outputs":[
     {"type":"address","name":"_newDAO"}],"inputs":[
     {"type":"uint256","name":"_proposalID"}],"constant":true},
  {name:"numberOfProposals","type":"function","outputs":[
  {"type":"uint256","name":"_numberOfProposals"}],"inputs":[],"constant":true},
  {name : "extraBalance", "constant" : true, "inputs" : [],  "type" : "function",    
     "outputs" : [{ "name" : "", "type" : "address"  } ]}
];
var contract = web3.eth.contract(abi).at(address);

// find all successfull splits
var allProposals = contract.numberOfProposals().toNumber();
var result = [];
for (var i=1;i<=allProposals;i++) {
  var newDAO = contract.getNewDAOAddress(i);
  if (newDAO=="0x" || web3.toDecimal(newDAO)==0) continue;
  var extraBalanceAccount = web3.eth.contract(abi).at(newDAO).extraBalance();
  result.push({
     address : newDAO,
     extraBalanceAccount : extraBalanceAccount
  });
}

var newDAO = '0xbb9bc244d798123fde783fcc1c72d3bb8c189413';
var extraBalanceAccount = web3.eth.contract(abi).at(newDAO).extraBalance();
result.push({
     address : newDAO,
     extraBalanceAccount : extraBalanceAccount
  });

console.log(JSON.stringify(result));