Add more of removed children of same namewithout displaying previously removed

1

I want to remove all children of the name (mc1) but be able to add new one when I call the add function again
Heres what I have

// Draws the squares

function drawIt(e:Event=null):void{
            mc1.graphics.lineStyle(1);
            mc1.graphics.beginFill(ITsColor);
            mc1.graphics.drawRect(w,h,10, 10);
            this.addEventListener("enterFrame",enterFrame_handler);
            this.addChild(mc1);mc1.graphics.endFill();
            //superMovieclip.mask = mc1;
            superMovieclip.visible=true
}

//removes squares

function killIt(e:Event):void{
            removeChild(mc1);
            this.removeEventListener("enterFrame",enterFrame_handler);
}

//eventFrame_handler just calls drawIt(); and adds to the position int.

Removing all the (mc1) movieclips works fine, but when i click on the butotn to call drawIt again, all previous mc1’s are displayed again with the new ones