template<class T_Function >
    class FMapSecondBinder
        : public T_Function
    {
    public:
        template<class T_Pair>
            void operator()( const T_Pair &Value )const
        {
            T_Function::operator()(Value.second);
        }
    };

    template<class T_Function >
        const FMapSecondBinder<T_Function> & second_binder(const T_Function &Function)
    {
        return *(const FMapSecondBinder<T_Function>*)(&Function);
    }

std::for_each(Map.begin(),Map.end(),second_binder(MyFunctor()));