[sergwizard]

Можно или так (пример):

masX = [10,20,30,40,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220];
masY = [20,35,50,65,80,95,110,125,110,95,80,65,50,35,20,35,50,65,80,95,110,125];
i=0;
this.createEmptyMovieClip("line",1);
line.lineStyle(1,0,100);
line.moveTo(masX[0],masY[0]);

function newPt(){
	this.onEnterFrame = function(){
	i++
	line.lineTo(masX[i],masY[i]);
	(i>=masX.length-1)? delete this.onEnterFrame : null;
	}
}
newPt();

или так:

 masX = [10,20,30,40,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220];
masY = [20,35,50,65,80,95,110,125,110,95,80,65,50,35,20,35,50,65,80,95,110,125];
i=0;
this.createEmptyMovieClip("line",1);
line.lineStyle(1,0,100);
line.moveTo(masX[0],masY[0]);
function newPt(){
	i++;
	if(i<=masX.length-1){
	_root.line.lineTo(masX[i],masY[i]);
	}
}
id = setInterval(newPt,300)