Controlling external swf , sub part "_visible" >> how?

1

hi all

i am doing some project helping my friend … and i am failing in getting this point!

if i have my main swf created that is contain _root.main.somewhere

and i did load some movieClip inside that somewhere!
_root.main.somewhere.picHolder.loadMovie(“swf/myDesired.swf”);

and inside the external file “myDesired.swf”,considered as OTHER SWF, i have a movieClip:
_root.sub.myPic01

what i am doing is:
from the main swf file
_root.main.somewhere.picHolder.sub.myMC01._visible = false;

but that is not taking any action!!! :crying:

any idea how to solve such things ???

:]