How to make dynamic buttons?

I am trying to make dynamic buttons…for me there are two ways, and i have queston for each.

  1. I am creating a simple button, and a dynamic text field, within a movieclip.
    Problem: When the cursor comes over the text field, it changes from “hand” to “arrow”…how do i prevent this?

2)I am creating a class for the button by extending movieclip.
Problem: How do i stretch the button to always fit the label within it?