Ayuda con attachMovie!!!

[stanmx]

Encontre la solucion, aqui la comparto con ustedes.

var perla_mc:MovieClip = createEmptyMovieClip("perlas", this.getNextHighestDepth());
perla_mc._x = 0;
perla_mc._y = 0;

//boton de perla
perla.onRollOver = function(){
var perlanegra:MovieClip = perla_mc.attachMovie("c-perla","c-perla",this.getNextHighestDepth());
perlanegra._x = 10;
perlanegra._y = 260;
}

perla.onRollOut = function() {
perlas.unloadMovie();
};