duplicateMovieClip

1 
gg.onPress = function(){
duplicateMovieClip(this, "g_mc", this.getNextHighestDepth());
    g_mc.dragEasing();
    trace(g_mc); //level0.g_mc
    }
gg.onRelease = gg.onReleaseOutside = function(){
    trace(g_mc); //level0.g_mc
    removeMovieClip(g_mc);
    }

It works if MovieClip gg is in _root.
But if I put gg in another MovieClip gg1 for example it doesn’t work!

 gg1.gg.onPress = function(){
duplicateMovieClip(this, "g_mc", this.getNextHighestDepth());
    g_mc.dragEasing();
    trace(g_mc); //undefined
    }
gg1.gg.onRelease = gg1.gg.onReleaseOutside = function(){
    trace(g_mc); //undefined
    removeMovieClip(g_mc);
    }