I will investigate the google spreadsheet option as that may solve the first two issues.
Regarding the last item, EXITING the quiz (closing the browser) --- since the user gets to an ending slide that asks them if they are satisfied with their user variables entered at the start, perhaps I can program the javascript "exit" command on that slide, once the use varifies the data is correct? Currently, a "continue" button appears after user data is verified, and then the button advances to the RESULTS slide, so that the resuls can be posted, which invokes the standard name/email dialog.
If the widget posts the quz results to the google spreadsheet after the last question has bee answered, then I can either HIDE (skip) the results slide, or choose "don't show" (uncheck) the quiz results box in the preferences, and have the verification slide appear. Then, I just need to make the browser close from there (probably with a button).
I will experiment with this option.
I was also wondering if I can edit the PHP file that collects the quiz results to include the user variables?