contract ERC20Token is ERC20, Owned {
	using SafeMath for uint256;

	mapping(address => uint256) balances;
	mapping(address => mapping (address => uint256)) allowed;


	// True if transfers are allowed
	bool public transferable = true;

	modifier canTransfer() {
		require(transferable == true);
		_;
	}

	function setTransferable(bool _transferable) onlyOwner public {
		transferable = _transferable;
	}

	/**
	 * @dev transfer token for a specified address
	 * @param _to The address to transfer to.
	 * @param _value The amount to be transferred.
	 */
	function transfer(address _to, uint256 _value) canTransfer public returns (bool) {
		require(_to != address(0));
		require(_value <= balances[msg.sender]);

		balances[msg.sender] = balances[msg.sender].sub(_value);
		balances[_to] = balances[_to].add(_value);
		emit Transfer(msg.sender, _to, _value);
		return true;
	}

	/**
	* @dev Gets the balance of the specified address.
	* @param _owner The address to query the the balance of.
		* @return An uint256 representing the amount owned by the passed address.
		*/
	function balanceOf(address _owner) public view returns (uint256 balance) {
		return balances[_owner];
	}

	/**
	* @dev Transfer tokens from one address to another
	* @param _from address The address which you want to send tokens from
	* @param _to address The address which you want to transfer to
	* @param _value uint256 the amount of tokens to be transferred
	*/
	function transferFrom(address _from, address _to, uint256 _value) canTransfer public returns (bool) {
		require(_to != address(0));
		require(_value <= balances[_from]);
		require(_value <= allowed[_from][msg.sender]);

		balances[_from] = balances[_from].sub(_value);
		balances[_to] = balances[_to].add(_value);
		allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
		emit Transfer(_from, _to, _value);
		return true;
	}

	// Allow `_spender` to withdraw from your account, multiple times.
	function approve(address _spender, uint _value) public returns (bool success) {
		// To change the approve amount you first have to reduce the addresses`
		//  allowance to zero by calling `approve(_spender, 0)` if it is not
		//  already 0 to mitigate the race condition described here:
		//  https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
		if ((_value != 0) && (allowed[msg.sender][_spender] != 0)) {
			revert();
		}
		allowed[msg.sender][_spender] = _value;
		emit Approval(msg.sender, _spender, _value);
		return true;
	}

	/**
	 * @dev Function to check the amount of tokens that an owner allowed to a spender.
	 * @param _owner address The address which owns the funds.
	 * @param _spender address The address which will spend the funds.
	 * @return A uint256 specifying the amount of tokens still available for the spender.
	 */
	function allowance(address _owner, address _spender) public view returns (uint256) {
		return allowed[_owner][_spender];
	}

	function () external payable {
		revert();
	}
}
function balanceOf(address _owner) public view returns (uint256 balance) {
		return balances[_owner];
	}
/**
 	* @dev Gets the balance of the specified address.
 	* @param _owner The address to query the the balance of.
 		* @return An uint256 representing the amount owned by the passed address.
 		*/