Function returns null address in any case.

pragma solidity ^0.4.9;

contract Test {

address da;
function getSender () constant returns (address){
    da=msg.sender;
    return da;
}

}

Tried through myetherwallet and parity, network is not synchronized.

Function returns null address in any case.

pragma solidity ^0.4.9;

contract Test {

    address da;
    function getSender () constant returns (address){
        da=msg.sender;
        return da;
    }
}

Tried through myetherwallet and parity, network is not synchronized.