setInterval and onEnterFrame in mx

[maydays]

Hi guys
I have 3 mcs on stage and this script in frame 1 that draws a line between them.

code:

---

stop();

function draw() {

    mc.clear();

    mc.lineStyle(0, 0x000000, 60);

    mc.moveTo(h1._x, h1._y);

    mc.lineTo(h2._x, h2._y);

    mc.lineTo(h3._x, h3._y);

}

setInterval(draw, 2);

---

the setInterval is allways on.
After the animation plays on button i have the next script that plays the scene back

code:

---

on (release) {

    _root.onEnterFrame = function() {

        _root.prevFrame();

        if (_root._currentframe == 1) {

            delete _root.onEnterFrame;

        }

    };

}

---

The problem is that when the scene plays back the lines remain behind


If anyone have anyideas how 2 make this one work please help.

Thank You