Action Script Preloader

For Flash MX 2004. (I think it works in MX too.)

1. Add a new scene before your first one (the new scene will have only one keyframe).
2. In the 1st keyframe (and the only one) of the 1st scene (the one you just added), insert this script:
   

   
   // do not alterate this script
   // This script was build by Cosmin Varlan (vcosmin@uaic.ro)
   lungime_preloader = 510;
   inaltime_preloader = 40;
   preloader_x = 20;
   preloader_y = 120;
   var text_format = new TextFormat();
   text_format.font = "Tahoma";
   text_format.size = 11;
   text_format.color = 0x444444;
   text_format.bold = true;
   text_format.align = "center";
   _root.createEmptyMovieClip("bg", 1);
   with (_root.bg) {
   	_x = preloader_x;
   	_y = preloader_y;
   	lineStyle(0.1, 0xff0000, 60);
   	beginFill(0xffff00, 40);
   	moveTo(5, 0);
   	lineTo(lungime_preloader-5, 0);
   	lineTo(lungime_preloader-5, 40);
   	lineTo(5, 40);
   	lineTo(5, 0);
   	endFill();
   }
   _root.createEmptyMovieClip("loader", 2);
   with (_root.loader) {
   	_x = Math.ceil(_root.bg._width/2)-46+_root.bg._x;
   	_y = _root.bg._y+10;
   	lineStyle(0.1, 0x333333, 100);
   	moveTo(0, 0);
   	lineTo(102, 0);
   	lineTo(102, 10);
   	lineTo(0, 10);
   	lineTo(0, 0);
   }
   _root.createEmptyMovieClip("bar", 3);
   with (_root.bar) {
   	_x = _root.loader._x+1.5;
   	_y = _root.loader._y+1.5;
   	lineStyle(0.1, 0x00ffff, 60);
   }
   _root.createTextField("proc", 4, _root.loader._x, _root.loader._y+10, 102, 20);
   _root.createEmptyMovieClip("motor", -1);
   _root.motor.onEnterFrame = function() {
   	_root.total = _root.getBytesTotal();
   	_root.incarcat = _root.getBytesLoaded();
   	_root.procent = Math.floor(_root.incarcat*100/_root.total);
   	if (procent<100) {
   		with (_root.bar) {
   			clear();
   			beginFill(0xff0000, 40);
   			moveTo(0, 0);
   			lineTo(_root.procent, 0);
   			lineTo(_root.procent, 8);
   			lineTo(0, 8);
   			lineTo(0, 0);
   			endFill();
   			_root.proc.text = _root.procent;
   			_root.proc.setTextFormat(text_format);
   		}
   	} else {
   		_root.bg.removeMovieClip();
   		_root.loader.removeMovieClip();
   		_root.bar.removeMovieClip();
   		_root.proc.removeTextField();
   		nextScene();
   		play();
   	}
   };
   stop();
   

That's all folks :D