AS3 Drawing Circle with Radial Gradient

// I can never remember how this goes, so here it is:
 
var circ:MovieClip = radialGradientCircle(50,true);
 
function radialGradientCircle(radius:Number, autoAdd:Boolean=true):MovieClip
{
	var c:MovieClip = new MovieClip;
	var mtx:Matrix = new Matrix();
	mtx.createGradientBox(radius*2,radius*2,0,-radius,-radius);
	c.graphics.beginGradientFill(GradientType.RADIAL, [0xDDDDDD, 0xFF6F22], [1,1], [0,255], mtx);
	c.graphics.drawCircle(0,0,radius);
	if (autoAdd) {addChild(c)};
	return c;
}