Please help. Finding the _x and_y's in a tween class

So here is my script. As you can see I have tween class starting point at 900. Is there any way to make it begin the tween where ever my MC’s current _x and _y are?on (release) {
import mx.transitions.easing.*;
import mx.transitions.Tween;
var tw1:Tween = new Tween(picture, “_x”, Regular.easeIn, 900, 69, 1, true);
var tw2:Tween = new Tween(picture, “_y”, Regular.easeIn, 900, 106, 1, true);
}

:battery::+):cons::luigi: