In the problem I am working on, container1 (a Sprite) will
contain some number of text fields. I want to be able to access the
text stored in each text field but don't know how to get to it. In
the code below, I can get to the name of the text field, but I know
that getChildAt does not have a text property, so how should I get
the values tf1.text and tf2.text from container1?