old_contents: var Web3 = require('web3');
  
  // @see https://gist.github.com/frozeman/fbc7465d0b0e6c1c4c23
  if (typeof web3 !== 'undefined') {
    var defaultAccount = web3.eth.defaultAccount;
    web3 = new Web3(web3.currentProvider);
    web3.eth.defaultAccount = defaultAccount;
  }
  else {
    web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));
    web3.eth.defaultAccount = web3.eth.accounts[0];
  }
  
  var accountKeyValueAbi = require('./account_key_value.abi.json');
  var accountKeyValueContract = web3.eth.contract(accountKeyValueAbi);
  var accountKeyValueAddress = '0x5108ff346ccca474fcbcc3a9eed4aae51c239063';
  var accountKeyValue = accountKeyValueContract.at(accountKeyValueAddress);
  
  module.exports = {
    valueSet: accountKeyValue.valueSet,
    valueDelete: accountKeyValue.valueDelete,
    valueGet: accountKeyValue.valueGet
  };
  
new_contents: var Web3 = require('web3');
  
  // @see https://gist.github.com/frozeman/fbc7465d0b0e6c1c4c23
  if (typeof web3 !== 'undefined') {
    var defaultAccount = web3.eth.defaultAccount;
    web3 = new Web3(web3.currentProvider);
    web3.eth.defaultAccount = defaultAccount;
  }
  else {
    web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));
    web3.eth.defaultAccount = web3.eth.accounts[0];
  }
  
  // Solc version: 0.2.0-0/Release-Linux/g++/int linked to libethereum-1.1.1-0/Release-Linux/g++/int
  
  var accountKeyValueAbi = require('./account_key_value.abi.json');
  var accountKeyValueContract = web3.eth.contract(accountKeyValueAbi);
  var accountKeyValueAddress = '0x5108ff346ccca474fcbcc3a9eed4aae51c239063';
  var accountKeyValue = accountKeyValueContract.at(accountKeyValueAddress);
  
  module.exports = {
    valueSet: accountKeyValue.valueSet,
    valueDelete: accountKeyValue.valueDelete,
    valueGet: accountKeyValue.valueGet
  };
  
subject: Document solc version.