Xml gallery thumbnails

1

the gallery works fine so do the thumbnails but i want to make the scroller to ease , i tried to add code but it doesnt work. Who knows the solution to my problem ??


function thumbNailScroller() {
 // thumbnail code! 
 this.createEmptyMovieClip("tscroller", 1000);
 scroll_speed = 10;
 tscroller.onEnterFrame = function() {
  if ((_root._ymouse>=thumbnail_mc._y) && (_root._ymouse<=thumbnail_mc._y+thumbnail_mc._height)) {
   if ((_root._xmouse>=(hit_right._x-20)) && (thumbnail_mc.hitTest(hit_right))) {
	thumbnail_mc._x -=  scroll_speed;
	
	} else if ((_root._xmouse<=(hit_left._x+20)) && (thumbnail_mc.hitTest(hit_left))) {
	thumbnail_mc._x += scroll_speed;
   }
  } else {
   delete tscroller.onEnterFrame;
  }
 };
}

also this script to fade the thumbnails on rollover works fine but when i do this to the rollout , the thumbnails dont load anymore??

target_mc.onRollOver = function() {
		this.onEnterFrame = function(){
				this._alpha -= 5;
				if(this._alpha <= 50){
						delete this.onEnterFrame;
		  }
			 }
			 thumbNailScroller();
	   };

many thanks if someone can help me with this problem!!