Movie clips in same level

Hi people!\rI have a movie (back.swf) and this calls into another(menu.swf, level20).\rI want to control the movie clips to the level0 with the buttons on level20.\rI do that but I can´t control in a random order.\rFor example: \rI press button 1 and play movie clip 1.\rI press button 2 and play movie clip 2.\rBut if I press again button 1 don’t play it.\rAnd if I press the button 3 play the movie 3 but don’t allow to return to the button 1 and 2.\rEvery movie clips are in level0.\rSolutions???!

the path will be something like this:\;\r\r:) \rjeremy