contract StandardToken {
  using SafeMath for uint256;
  mapping (address => mapping (address => uint256)) allowed;
  mapping(address => uint256) balances;
  mapping(address => bool) preICO_address;
  uint256 public totalSupply;
  uint256 public endDate;
  /**
  * @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) public returns (bool) {

    if( preICO_address[msg.sender] ) require( now > endDate + 120 days ); //Lock coin
    else require( now > endDate ); //Lock coin

    balances[msg.sender] = balances[msg.sender].sub(_value);
    balances[_to] = balances[_to].add(_value);
    Transfer(msg.sender, _to, _value);
    return true;
  }
  event Transfer(address indexed from, address indexed to, uint256 value);

  /**
  * @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) constant public 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 amout of tokens to be transfered
                       */
  function transferFrom(address _from, address _to, uint256 _value) public returns (bool) {
    var _allowance = allowed[_from][msg.sender];

    // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
    // require (_value <= _allowance);

    if( preICO_address[_from] ) require( now > endDate + 120 days ); //Lock coin
    else require( now > endDate ); //Lock coin

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

  /**
   * @dev Aprove the passed address to spend the specified amount of tokens on behalf of msg.sender.
        * @param _spender The address which will spend the funds.
             * @param _value The amount of tokens to be spent.
                  */
  function approve(address _spender, uint256 _value) public returns (bool) {

    // 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
    require((_value == 0) || (allowed[msg.sender][_spender] == 0));

    if( preICO_address[msg.sender] ) require( now > endDate + 120 days ); //Lock coin
    else require( now > endDate ); //Lock coin

    allowed[msg.sender][_spender] = _value;
    Approval(msg.sender, _spender, _value);
    return true;
  }
  event Approval(address indexed owner, address indexed spender, uint256 value);

  /**
   * @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 specifing the amount of tokens still avaible for the spender.
                       */
  function allowance(address _owner, address _spender) constant public returns (uint256 remaining) {
    return allowed[_owner][_spender];
  }

}
/**
 * @title Standard ERC20 token
 *
 * @dev Implementation of the basic standard token.
 * @dev https://github.com/ethereum/EIPs/issues/20
 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
 */
function transfer(address _to, uint256 _value) public returns (bool) {

  if( preICO_address[msg.sender] ) require( now > endDate + 120 days ); //Lock coin
  else require( now > endDate ); //Lock coin

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

/**
 * @dev transfer token for a specified address
 * @param _to The address to transfer to.
 * @param _value The amount to be transferred.
 */