public static function intersectionPoint(p0:Point, p1:Point, p2:Point, p3:Point):Point

{

    var rX:Number = ((p0.x * p1.y - p0.y * p1.x) * (p2.x - p3.x) - 

                    (p0.x - p1.x) * (p2.x * p3.y - p2.y * p3.x)) /

                    ((p0.x - p1.x) * (p2.y - p3.y) - (p0.y - p1.y) * (p2.x - p3.x));

    var rY:Number = ((p0.x * p1.y - p0.y * p1.x) * (p2.y - p3.y) - 

                    (p0.y - p1.y) * (p2.x * p3.y - p2.y * p3.x)) /

                    ((p0.x - p1.x) * (p2.y - p3.y) - (p0.y - p1.y) * (p2.x - p3.x));

    return new Point(rX, rY);

}