Load movie problem?

I want to load multiple swfs by clicking menu buttons, into another movieclip(removing one movie and loading another on its place.).

Please give me some hints to do that.

I am trying with this code but target movie does not load into my target movie clip.

My target movie clip is empty.

on (release) {
_root.mytargetmc.loadMovieNum(“loadmovie.swf”, 1);

Please guide me !