How to draw dynamically from right to left?

1

Hi,
I am trying to make a square, using the drawing API. Since I want the lines I am making to show as they are drawn I ended up with this code:

_root.createEmptyMovieClip("ritax1", 2);
setProperty("ritax1", _x, 75);
setProperty("ritax1", _y, 50);
ritax1.lineStyle(0, 0x000000, 100);
this.onEnterFrame = function() {
	ritax1.lineTo(10, 0);
	ritax1._xscale += 300;
	if (ritax1._xscale>=2000) {
		ritax1._xscale = 2000;
	}
};

First, I am sure there is a smarter way to do this. Would anyone bother to tell me! Secondly and most important: How would I do to draw a line from right to left?