 import mx.core.mx_internal;
 import mx.effects.EffectInstance;
 import mx.effects.Tween;
+
+use namespace mx_internal;
 
 /**
  *  The SoundEffectInstance class implements the instance class

     */
    mx_internal function onVolumeTweenEnd(value:Object):void
    {
        mx_internal::onVolumeTweenUpdate(value);
        
        finishTween();
    }

     */
    mx_internal function onPanTweenEnd(value:Object):void
    {
        onPanTweenUpdate(value);
        
        finishTween();
    }
