dynamic text in Augmented reality via Flex 4

Question

I have been playing with Augmented Reality recently, with my code I can create a cube but I want to create a dynamic Text which will give some information about the cube and change dynamically according movement of Marker.

the code of cube

 private var container:FLARBaseNode;

---

var ml:MaterialsList=new MaterialsList({all:new FlatShadeMaterial(pl)});   
var cube1:Cube=new Cube(ml, 30,30,30);

container.addChild(cube1);