codice:
preload.barra._xscale=0

_level0.onEnterFrame=function(){
        car=this.getBytesLoaded()
        tot=this.getBytesTotal()
        perc=Mat.round(car/tot*100)
        preload.barra._xscale=perc
        if(car==tot && car >1024){
          // caricamento avvenuto
             preload.barra._alpha=100
             preload.barra.onEnterFrame=function(){
                if(this._alpha>0){this._alpha-=10}
                else{delete this.onEnterFrame}
             }
             delete this.onEnterFrame
        }
}