Movieclip always on top

Hi guys,

Im wondering if its possible to arrange movieclips with addchild in such a way like this?:

lets say we have:
mc_1 - mc_2 - mc_3 - mc_4 - mc_5 - mc_6
mc_1 and mc_2 ALWAYS have to be on top…
mc_3 - mc_4 - mc_5 and mc_6 is in a loop and rotating between eachother.

mc_1 and mc_2 is in my case a forward and back button (obviously these have to be on top all the time)… mc_3 - 6 is images rotating… or would there be a smart way of solving this?

Thx in advance!