What is the name of my plant?

Question:I have two type of this plant, I mean it has same branches but different type flowers. Both smell horrible :(. Hairy one attracts fly. You can find images of both types, below. Thanks.

Type 1
http://img172.imageshack.us/img172/6514/...
http://img502.imageshack.us/my.php?image...

Type2
http://img262.imageshack.us/img262/5526/...
http://img172.imageshack.us/img172/7913/...

Answers:
Carrion flower(Stapelia gigantea) The flies are attracted because that is how this plant is pollinated. That is why it stinks; because it must attract the fly for pollination. It is not a cactus though it looks like one. Other names are Zulu giant, hairy starfish flower, star cactus and starfish cactus (even though it is not actually a cactus)

I hope this helps~ you might consider buying a room freshener until the blooms vanish!