Problems with random movieclips

i had used the action scrip suggested = random(5);

i placed it at the end of each movie clip, named the movie clips correctly, and placed stop commands at the beguining of each movie clip. i also placed that action script at the beguining of my main movie.

am i dong something wrong? i just want to play 5 movieclips at random. if needed i can through the fla. up. thanks in advance