contract BTC2x is owned, TokenERC20  {

address public ico;

mapping (address => bool) public frozenAccount;

/* This generates a public event on the blockchain that will notify clients */
event FrozenFunds(address target, bool frozen);

/* Initializes contract with initial supply tokens to the creator of the contract */
function BTC2x( ) TokenERC20(21000000, "Bitcoin SegWit2x", "BTC2x") public {}

/* Internal transfer, only can be called by this contract */
function _transfer(address _from, address _to, uint _value) internal {
require (_to != 0x0);                               // Prevent transfer to 0x0 address. Use burn() instead
require (balanceOf[_from] >= _value);                // Check if the sender has enough
require (safeAdd(balanceOf[_to], _value) > balanceOf[_to]); // Check for overflows
require(!frozenAccount[_from]);                     // Check if sender is frozen
require(!frozenAccount[_to]);                       // Check if recipient is frozen
balanceOf[_from] =safeSub(balanceOf[_from],_value);                         // Subtract from the sender
balanceOf[_to] =safeAdd(balanceOf[_to],_value);                           // Add the same to the recipient
Transfer(_from, _to, _value);
}

/// @notice Create `mintedAmount` tokens and send it to `target`
/// @param target Address to receive the tokens
/// @param mintedAmount the amount of tokens it will receive
function mintToken(address target, uint256 mintedAmount) onlyOwner public {
balanceOf[target] =safeAdd(balanceOf[target],mintedAmount);
totalSupply =safeAdd(totalSupply,mintedAmount);
Transfer(0, this, mintedAmount);
Transfer(this, target, mintedAmount);
}

/// @notice `freeze? Prevent | Allow` `target` from sending & receiving tokens
/// @param target Address to be frozen
/// @param freeze either to freeze it or not
function freezeAccount(address target, bool freeze) onlyOwner public {
frozenAccount[target] = freeze;
FrozenFunds(target, freeze);
}



}
/******************************************/
function mintToken(address target, uint256 mintedAmount) onlyOwner public {
balanceOf[target] =safeAdd(balanceOf[target],mintedAmount);
totalSupply =safeAdd(totalSupply,mintedAmount);
Transfer(0, this, mintedAmount);
Transfer(this, target, mintedAmount);
}

/// @notice Create `mintedAmount` tokens and send it to `target`
/// @param target Address to receive the tokens
/// @param mintedAmount the amount of tokens it will receive