Non il massimo in eleganza, ma dovrebbe funzionare:

Codice PHP:
this.attachMovie("but1","pippo",2); 
this.attachMovie("but2","but2",1); 

var 
startX:Number 100
var 
startY:Number 100

this.pippo._x=startX
this.pippo._y=startY
this.but2._x=200
this.but2._y=200

pippo.onPress = function (){ 
    
this.startDrag();
    if(!
_root.hittato){
       
_root.attachMovie("but1","but1Doppler",3); 
        
_root.but1Doppler._x=startX
        
_root.but1Doppler._y=startY
        
_root.but1Doppler.onPress = function (){
            
this.startDrag();
        }
        
_root.but1Doppler.onRelease = function (){ 
            
stopDrag();
        }
    }


pippo.onRelease = function (){ 
    
stopDrag(); 
    if (!
this.hitTest(_root.but2)) { 
        
this._x=startX
        
this._y=startY
    }else{
        
_root.hittato=true;
    }