How to install window regulator?

I don't know the exact procedure, but I do know that you have to secure the old regulator when you remove it, because it is spring loaded and capable of removing a finger or two -- so be careful and if u dont know what ur doing take it to a shop so u dont have to be bottlefed for the rest of ur life . not being mean but i seen a man get all of his front teeth knockd out replacing 1