Interactive Javascript Quiz Game

Description

This application provides a simple interactive quiz about the Javascript programming language.
The opening screen explains the quiz and its scoring.
The player starts the quiz with a button click, and a timer begins to count from 120 seconds down to zero.
When a user clicks an answer choice, the result is displayed as correct or incorrect.
If the answer is correct, 10 points are added to the score.
If incorrect, 10 seconds is removed from the timer and no points are scored.
If the timer reaches zero or if all the questions are answered, the game ends.
At the end of the game, the high score board is displayed.
The user has the option of recording the previous score or beginning a new game.

A future version of this simple quiz application might include:

Randomizer that displays answers and questions in random order
Randomizer that fills out the list beyond the correct answer with wrong answers from a long list of incorrect choices to thwart easy retaking of the quiz to beat the timer
Ability for a user to choose a quiz length (in numbers of questions) and a difficulty level
Multiple categories of questions within the Javascript language
"Reverse engineering" animated GIF screenshot questions that show an application in action then ask how to achieve its functionality using Javascript
Animations and sound effects during play for correct / incorrect answers and high scores