7. The method of claim 1 , wherein at least one of the state structures define a button for navigating from a screen corresponding to the state structure to another state structure.
7. The method of claim 1 , wherein at least one of the state structures define a button for navigating from a screen corresponding to the state structure to another state structure. 8. The method of claim 7 , wherein the button is defined to be invisible button, which can become visible upon satisfaction of a defined condition.