onMouseMove

programming flash
21 

theMovie.onRollOver = function(){
   this.onMouseMove = function(){
      if(this.oldx < this._xmouse){
         this.prevFrame();
      }else{
         this.nextFrame();
      }
   this.oldx = this._xmouse;
}

theMovie.onRollOut = function(){
   this.onMouseMove = null;
}

i’ve inserted it into the code i wrote earlier, but the same strategy should work in any code.