function doAccountAddressFromPublicKey(base58AccountPublicKey) {

  var base58AccountPublicKey = document.getElementById('base58AccountPublicKey').value;

  if(Base58.decode(base58AccountPublicKey).length != 32) {
    document.getElementById('base58AccountAddress').value = '';
    alert("invalid PublicKey!");
    return;
  }

  var base58AccountAddress = getAccountAddressFromPublicKey(base58AccountPublicKey);
  document.getElementById('base58AccountAddress').value = base58AccountAddress;
}

function doBrain(brainWalletPassphrase)
{
  //var brainWalletPassphrase = document.getElementById('brainWalletPassphrase').value;

  if(brainWalletPassphrase.length < 8) {
alert("invalid passphrase length!\nIt should be at least 8 characters.");
    return;
  }

  var byteSeed = new Uint8Array(SHA256.digest(SHA256.digest(brainWalletPassphrase)));
  var base58BaseSeed = Base58.encode(byteSeed);

  doAccounts(base58BaseSeed);
}

function doAccountFromSeed(base58AccountSeed)
{
  if(base58AccountSeed) {
    document.getElementById('base58AccountSeed').value = base58AccountSeed;
  } else {
    base58AccountSeed = document.getElementById('base58AccountSeed').value;
  }

  if(Base58.decode(base58AccountSeed).length != 32) {
    alert("invalid seed!");
    return;
  }

  keyPair = getKeyPairFromSeed(base58AccountSeed, false);

  var base58AccountAddress = getAccountAddressFromPublicKey(keyPair.publicKey);

  var base58AccountPublicKey = Base58.encode(keyPair.publicKey);
  var base58AccountPrivateKey = Base58.encode(keyPair.privateKey);

}

function doAccounts(base58BaseSeed){

  if(base58BaseSeed == '') {
    return;
  }

  countAddrs = 10;

  if(isNaN(countAddrs) || countAddrs < 1) {
    alert("invalid count!");
    return;
  }

  seed = Base58.decode(base58BaseSeed);

  if(seed.length != 32) {
    alert("invalid seed!");
    return;
  }

  for (var nonce = 0; nonce < countAddrs; nonce ++) {
    var accountSeed = generateAccountSeed(seed, nonce, false);
    var keyPair = getKeyPairFromSeed(accountSeed);
    var base58addressSeed = Base58.encode(accountSeed);


address = getAccountAddressFromPublicKey(keyPair.publicKey);

$("#selected-name").append("<option class=\"user-menu_username\" value="+base58addressSeed+">"+address+"</option>")

  }
}