Making a quiz questions #1

gistfile1.txt

var allQuestions = [];
allQuestions[0]={
				question: "what is your name?",
				choices:["steve", "kevin", "chloe","haeseong"],
				correctAnswer: 1
					};
allQuestions[1]={
				question: "what is your passion?",
				choices:["programmer", "teacher", "scientist","home builder"],
				correctAnswer: 1
					};	
allQuestions[2]={
				question: "what is your favorite movie?",
				choices:["superman", "batman", "mickey Mouse", "none"],
				correctAnswer: 1
				};	
var questionNumber = 0;
var score = 0;
var next=document.getElementById("next");
var userChoice = null;
function showScore(){
	var quiz =document.getElementById("quiz");
	quiz.style.display="none";	
	var scoreBoard=document.getElementById("scoreBoard");
	scoreBoard.innerHTML="you score is: " + score;
}

function displayQuestion(qn){
	if (allQuestions.length == questionNumber){
		return showScore();

	}
	else{
	for (var i =1; i < allQuestions[qn].choices.length;i++){
		allQuestions[qn].choices.checked = false;
		}
	var questionLocation=document.getElementById("question");
	questionLocation.innerHTML=allQuestions[qn].question;
	for(var i =1; i < allQuestions[qn].choices.length; i++){
		document.getElementById("choiceText"+i).innerHTML=allQuestions[qn].choices[i];
		}
	}
};
function checkAnswer(){ 
	for(var i =1; i < allQuestions.choices.length; i++){
	if (document.forms.quiz.elements.choice[i].checked){
		if ( document.forms.quiz.elements.choice[i].value== allQuestions[questionNumber].correctAnswer){
			score++;
		}
	}
}
	questionNumber++;
	displayQuestion(questionNumber);

}

next.onclick=function(){
	checkAnswer();
}
window.onload=function(){
	displayQuestion(questionNumber);
}