scusami
codice:
target.pic.loadMovie("myImg.jpg")
target.pic._alpha=0
target.fx._visible=1 // preload
target.onEnterFrame=function(){
         car=this.pic.getBytsLoaded()
         tot=this.pic.getBytesTotal()
         if(car == tot){
           // foto caricata
           // il loading si vede ancora
              this.pic._alpha=100
              this.fx._visible=0
              delete this.onEnterFrame
         }
}