flyable navmesh

Would you like to know how to make flyable navemeshes.I am going to tell you.You parent your navmesh to a plane ,your enemy and your player to that plane.Then you make the enemy and player dynamic.Then you put a always sensor on your player connected to a and controller.which is connected to a steering actuator set to path follow. Then set the target object to the enemy and the navemesh object to your navemesh.And that is http://www.pasteall.org/blend/19581it.