Use the same submit button for each Survey Question type

[waryhermit]

There should be only one submit button that works for all of the Survey question types. Having a button for each that has no unique identifier (name or id) makes testing difficult. Not only that, but its a waste of html too.

[waryhermit]

Right now I can work around this with some fragile and clunky xpath magic:

//*[@style="display: block;"]/div/input