[flexcoders] sequential addition of sprite objects

[chrisvet2001]

I'm trying to develop a system to show how to get from point A to
point B on a floorplan...

I'm having 2 problems -- 
1) the best way to display these points over a period of time (to
'animate' the points) 
2) when i do build in some delays, nothing gets displayed until all of
the points are already there...

my prototype code is below...

package  {
    import flash.display.Sprite;

    public class Breadcrumbs extends Sprite {
        
        private var _pathX:Array = ['10','30','30','75'];
        private var _pathY:Array = ['10','10','50','50'];
        
        public function Breadcrumbs() {
            init()
        }

        public function init():void {
            drawPath();
        }

        private function drawPath():void {
                var lastX:int = _pathX[0];
                var lastY:int = _pathY[0];
                var currentTime:Date;
                var previousTime:Date = new Date();
                var i:int = 0;          

                while (i < _pathX.length) {
                        currentTime = new Date();
                        if (currentTime.getTime() > previousTime.getTime() + 
5000) {
                        var s:Sprite = new Sprite();
                        s.graphics.beginFill(0xFF0000, 1);
                        s.graphics.drawCircle(_pathX[i], _pathY[i], 2);
                        addChild(s);
                        i++;
                 }
            }
        }
    }
}

Any Ideas as to how to improve the 'delay' code and/or how to get the
individual points to show up one at a time?

Thanks,
Chris