[sergwizard]

Код в первый фрейм:

stop();
var tot = _root.getBytesTotal();
this.createEmptyMovieClip("line",1);
this.onEnterFrame = function(){
	loaded = _root.getBytesLoaded();
	percent = loaded/tot*100;
		with(_root.line){
			lineStyle(10,0xFF0000,100);
			moveTo(0,50);
			lineTo(percent*8,50);
		}
	if(percent>=100){
		_root.line.removeMovieClip();
		delete this.onEnterFrame;
		gotoAndStop(2);
	}
}