pragma solidity ^0.4.13;


contract ERC20Interface {
     
    function totalSupply() constant returns (uint256 totalSupply);
    function balanceOf(address _owner) constant returns (uint256 balance);  
    function transfer(address _to, uint256 _value) returns (bool success);  
    function transferFrom(address _from, address _to, uint256 _value) returns (bool success);
    function approve(address _spender, uint256 _value) returns (bool success);
    function allowance(address _owner, address _spender) constant returns (uint256 remaining);
    event Transfer(address indexed _from, address indexed _to, uint256 _value);
    event Approval(address indexed _owner, address indexed _spender, uint256 _value);
 }
  
 contract Cryptobanks is ERC20Interface {
    string public constant symbol = "CBG";
    string public constant name = "Cryptobanks";
    uint8 public constant decimals = 18;
    uint256 _totalSupply = 1008000000000000000000000000;
    address public owner;
    mapping(address => uint256) balances;
    mapping(address => mapping (address => uint256)) allowed;
    modifier onlyOwner() {
        require(msg.sender != owner); {
             
        }
          _;
    }
   
    function Cryptobanks() {
        owner = msg.sender;
        balances[owner] = _totalSupply;
    }
  
    function totalSupply() constant returns (uint256 totalSupply) {
        totalSupply = _totalSupply;
    }
  
    function balanceOf(address _owner) constant returns (uint256 balance) {
        return balances[_owner];
    }
   
    function transfer(address _to, uint256 _amount) returns (bool success) {
        if (balances[msg.sender] >= _amount 
            && _amount > 0
            && balances[_to] + _amount > balances[_to]) {
            balances[msg.sender] -= _amount;
            balances[_to] += _amount;
            Transfer(msg.sender, _to, _amount);
            return true;
        } else {
            return false;
            }
      }
   
      function transferFrom(
        address _from,
        address _to,
        uint256 _amount
    ) returns (bool success) {
       if (balances[_from] >= _amount
            && allowed[_from][msg.sender] >= _amount
            && _amount > 0
            && balances[_to] + _amount > balances[_to]) {
            balances[_from] -= _amount;
            allowed[_from][msg.sender] -= _amount;
            balances[_to] += _amount;
             Transfer(_from, _to, _amount);
             return true;
        } else {
            return false;
         }
     }
  
     function approve(address _spender, uint256 _amount) returns (bool success) {
         allowed[msg.sender][_spender] = _amount;
         Approval(msg.sender, _spender, _amount);
         return true;
     }
  
     function allowance(address _owner, address _spender) constant returns (uint256 remaining) {
         return allowed[_owner][_spender];
     }
}