Air Dropper Improved

AirDropperImproved.sol

pragma solidity ^0.4.24;

contract ERC20Basic {
  uint public totalSupply;
  function balanceOf(address who) constant returns (uint);
  function transfer(address to, uint value);
  event Transfer(address indexed from, address indexed to, uint value);
}

contract ERC20 is ERC20Basic {
  function allowance(address owner, address spender) constant returns (uint);
  function transferFrom(address from, address to, uint value);
  function approve(address spender, uint value);
  event Approval(address indexed owner, address indexed spender, uint value);
}

contract Ownable {
  address public owner;


  /** 
   * @dev The Ownable constructor sets the original `owner` of the contract to the sender
   * account.
   */
  function Ownable() {
    owner = msg.sender;
  }


  /**
   * @dev Throws if called by any account other than the owner. 
   */
  modifier onlyOwner() {
    require(msg.sender == owner);
    _;
  }


  /**
   * @dev Allows the current owner to transfer control of the contract to a newOwner.
   * @param newOwner The address to transfer ownership to. 
   */
  function transferOwnership(address newOwner) onlyOwner {
    if (newOwner != address(0)) {
      owner = newOwner;
    }
  }

}

contract AirDropperImproved is Ownable {

    function multisend(address _tokenAddr, address[] dests, uint256[] values) onlyOwner returns (uint256) {
        uint256 i = 0;
        while (i < dests.length) {
           ERC20(_tokenAddr).transfer(dests[i], values[i]);
           i += 1;
        }
        return(i);
    }

    function tokenFallback(address _from, uint _value, bytes _data) public {
    }
}