Results in this display (when the user enters a value to the Text Input Field and presses the Show Value button):
This is of-course just one (and simplest) implementation option of many.
Triggering the value display can be done via other methods, such as:
Displaying the value can be implemented using a Display/Dialog (blocking), Display/Popup (non-blocking), Display/Layer , etc.
For best results, use the Firefox browser..