Able to choose from an array of questions
Display question number
Reorganised JS code

Created current question object. options -> choices
Changed order of code
Some readability changes
Overhaul. Separated DOM functions
DOM functions return objects instead of arrays
Fixed line endings (crlf -> lf)
Fixed type attribute of the next button

Type must not be submit, as this reloads the page
Number updates
Question can now update
Results page replaces quiz at end
Show score on results page
Radio buttons unchecked by default