function transferFrom(address _from, address _to, uint _value) validDestination(_to) returns (bool) {
        require(transferEnabled == true);
        
        if(lockStartTime[_from] > 0) {
            return super.lockTransferFrom(_from,_to,_value);
        }else {
            return super.transferFrom(_from, _to, _value);
        }
    }