How to deduct current/end of frames of dynamic movie clips

Hi…
I want to dynamically attach movie to the stage. This is fine. I’m able to do it. but i want to check if the dynamic movie clipe has executed all its frames (reached last frame). as soon as this happens i want to attach a diff movie clip. Is this possible? if i use the _currentframe property, it gives always 1 as the frame. it doesnt get to last frame of the dynamic movie clip. Please suggest a solution if you have any?

Thanks for looking at it…