go back from nested movieclips not work

hi , i have a movie clip called : "main"

in this movieclip there is another movieclip call : " sub"

i se script to when goes to end of sub movieclip timeline then gotoandplay frame 1 of main movieclip

so i use something like this :

MovieClip(parent).gotoAndStop(1);

for other project like this everything work fine but i have an effect component on this movieclip (sub) , for example texteff

and now nothing happend and the goto script not work anymore and there is not error !!

the strange thing is when i change the script to :

MovieClip(root).gotoAndStop(1);

the script work but it goes to root and main timeline and not what i want ...

so how can i define goback to parent movieclip ?

i try some script like :

MovieClip(root.main).gotoAndStop(1);

MovieClip(parent.parent).gotoAndStop(1);

and

.

.

.

but no success and most of them show error in compile ...

what should i do ?