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ShareholderOrg.sol

pragma solidity ^0.4.16;

contract owned {
    address public owner;

    function owned() {
        owner = msg.sender;
    }

    modifier onlyOwner {
        require(msg.sender == owner);
        _;
    }

    function transferOwnership(address newOwner) onlyOwner {
        owner = newOwner;
    }
}

contract tokenRecipient {

	uint256 public balance;

    event receivedEther(address sender, uint amount);
    event receivedTokens(address _from, uint256 _value, address _token, bytes _extraData);

    function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData){
        Token t = Token(_token);
        require(t.transferFrom(_from, this, _value));
        receivedTokens(_from, _value, _token, _extraData);
    }

    function () payable {
		
        receivedEther(msg.sender, msg.value);
		balance += msg.value;
    }
}

contract Token {
    mapping (address => uint256) public balanceOf;
    function transferFrom(address _from, address _to, uint256 _value) returns (bool success);
}

/**
 * The shareholder association contract itself
 */
contract ShareholderOrg is owned, tokenRecipient {

    uint public minimumQuorum;
    uint public debatingPeriodInMinutes;
    Proposal[] public proposals;
    uint public numProposals;
    Token public sharesTokenAddress;

    event ProposalAdded(uint proposalID, address recipient, uint amount, string description);
    event Voted(uint proposalID, bool position, address voter);
    event ProposalTallied(uint proposalID, uint result, uint quorum, bool active);
    event ChangeOfRules(uint newMinimumQuorum, uint newDebatingPeriodInMinutes, address newSharesTokenAddress);

    struct Proposal {
        address recipient;
        uint amount;
        string description;
        uint votingDeadline;
        bool executed;
        bool proposalPassed;
        uint numberOfVotes;
        bytes32 proposalHash;
        Vote[] votes;
        mapping (address => bool) voted;
    }

    struct Vote {
        bool inSupport;
        address voter;
    }

    // Modifier that allows only shareholders to vote and create new proposals
    modifier onlyShareholders {
        require(sharesTokenAddress.balanceOf(msg.sender) > 0);
        _;
    }
    
    function withdrawProfit() onlyShareholders returns (bool success) {
         
    }

    /**
     * Constructor function
     *
     * First time setup
     */
    function ShareholderOrg(Token sharesAddress, uint minimumSharesToPassAVote, uint minutesForDebate) payable {
        changeVotingRules(sharesAddress, minimumSharesToPassAVote, minutesForDebate);
    }

    /**
     * Change voting rules
     *
     * Make so that proposals need tobe discussed for at least `minutesForDebate/60` hours
     * and all voters combined must own more than `minimumSharesToPassAVote` shares of token `sharesAddress` to be executed
     *
     * @param sharesAddress token address
     * @param minimumSharesToPassAVote proposal can vote only if the sum of shares held by all voters exceed this number
     * @param minutesForDebate the minimum amount of delay between when a proposal is made and when it can be executed
     */
    function changeVotingRules(Token sharesAddress, uint minimumSharesToPassAVote, uint minutesForDebate) onlyOwner {
        sharesTokenAddress = Token(sharesAddress);
        if (minimumSharesToPassAVote == 0 ) minimumSharesToPassAVote = 1;
        minimumQuorum = minimumSharesToPassAVote;
        debatingPeriodInMinutes = minutesForDebate;
        ChangeOfRules(minimumQuorum, debatingPeriodInMinutes, sharesTokenAddress);
    }

   

}

TokenERC20.sol

pragma solidity ^0.4.16;

interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes _extraData) public; }

contract TokenERC20 {
    // Public variables of the token
    string public name;
    string public symbol;
    uint8 public decimals = 18;
    // 18 decimals is the strongly suggested default, avoid changing it
    uint256 public totalSupply;

    // This creates an array with all balances
    mapping (address => uint256) public balanceOf;
    mapping (address => mapping (address => uint256)) public allowance;

    // This generates a public event on the blockchain that will notify clients
    event Transfer(address indexed from, address indexed to, uint256 value);

    // This notifies clients about the amount burnt
    event Burn(address indexed from, uint256 value);

    /**
     * Constrctor function
     *
     * Initializes contract with initial supply tokens to the creator of the contract
     */
    function TokenERC20(
        uint256 initialSupply,
        string tokenName,
        string tokenSymbol
    ) public {
        totalSupply = initialSupply * 10 ** uint256(decimals);  // Update total supply with the decimal amount
        balanceOf[msg.sender] = totalSupply;                // Give the creator all initial tokens
        name = tokenName;                                   // Set the name for display purposes
        symbol = tokenSymbol;                               // Set the symbol for display purposes
    }

    /**
     * Internal transfer, only can be called by this contract
     */
    function _transfer(address _from, address _to, uint _value) internal {
        // Prevent transfer to 0x0 address. Use burn() instead
        require(_to != 0x0);
        // Check if the sender has enough
        require(balanceOf[_from] >= _value);
        // Check for overflows
        require(balanceOf[_to] + _value > balanceOf[_to]);
        // Save this for an assertion in the future
        uint previousBalances = balanceOf[_from] + balanceOf[_to];
        // Subtract from the sender
        balanceOf[_from] -= _value;
        // Add the same to the recipient
        balanceOf[_to] += _value;
        Transfer(_from, _to, _value);
        // Asserts are used to use static analysis to find bugs in your code. They should never fail
        assert(balanceOf[_from] + balanceOf[_to] == previousBalances);
    }

    /**
     * Transfer tokens
     *
     * Send `_value` tokens to `_to` from your account
     *
     * @param _to The address of the recipient
     * @param _value the amount to send
     */
    function transfer(address _to, uint256 _value) public {
        _transfer(msg.sender, _to, _value);
    }

    /**
     * Transfer tokens from other address
     *
     * Send `_value` tokens to `_to` in behalf of `_from`
     *
     * @param _from The address of the sender
     * @param _to The address of the recipient
     * @param _value the amount to send
     */
    function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
        require(_value <= allowance[_from][msg.sender]);     // Check allowance
        allowance[_from][msg.sender] -= _value;
        _transfer(_from, _to, _value);
        return true;
    }

    /**
     * Set allowance for other address
     *
     * Allows `_spender` to spend no more than `_value` tokens in your behalf
     *
     * @param _spender The address authorized to spend
     * @param _value the max amount they can spend
     */
    function approve(address _spender, uint256 _value) public
        returns (bool success) {
        allowance[msg.sender][_spender] = _value;
        return true;
    }

    /**
     * Set allowance for other address and notify
     *
     * Allows `_spender` to spend no more than `_value` tokens in your behalf, and then ping the contract about it
     *
     * @param _spender The address authorized to spend
     * @param _value the max amount they can spend
     * @param _extraData some extra information to send to the approved contract
     */
    function approveAndCall(address _spender, uint256 _value, bytes _extraData)
        public
        returns (bool success) {
        tokenRecipient spender = tokenRecipient(_spender);
        if (approve(_spender, _value)) {
            spender.receiveApproval(msg.sender, _value, this, _extraData);
            return true;
        }
    }

    /**
     * Destroy tokens
     *
     * Remove `_value` tokens from the system irreversibly
     *
     * @param _value the amount of money to burn
     */
    function burn(uint256 _value) public returns (bool success) {
        require(balanceOf[msg.sender] >= _value);   // Check if the sender has enough
        balanceOf[msg.sender] -= _value;            // Subtract from the sender
        totalSupply -= _value;                      // Updates totalSupply
        Burn(msg.sender, _value);
        return true;
    }

    /**
     * Destroy tokens from other account
     *
     * Remove `_value` tokens from the system irreversibly on behalf of `_from`.
     *
     * @param _from the address of the sender
     * @param _value the amount of money to burn
     */
    function burnFrom(address _from, uint256 _value) public returns (bool success) {
        require(balanceOf[_from] >= _value);                // Check if the targeted balance is enough
        require(_value <= allowance[_from][msg.sender]);    // Check allowance
        balanceOf[_from] -= _value;                         // Subtract from the targeted balance
        allowance[_from][msg.sender] -= _value;             // Subtract from the sender's allowance
        totalSupply -= _value;                              // Update totalSupply
        Burn(_from, _value);
        return true;
    }
}