Using an Array of Objects to Store Quiz Questions/Answers
How you're making the questions really looks ugly. How about this way?

var quiz = [{
    question: "Montgomery",
    answer: "Alabama",
    enabled: false,
    asked: 0
},{
    question: "Juneau",
    answer: "Alaska",
    enabled: true,
    asked: 0
}, {} /* ... */ ];

// Now instantiate every quiz
quiz = quiz.map(function(el) {
    return new quizConstructor(el.question, el.answer, el.enabled, el.asked);
});


Now if you're not doing anything more with your quizConstructor object, you can just as well use plain objects. (What's done before instantiating every quiz up there.)