Web Development

var spantag=document.getElementById("displayCamera");
spantag.innerHTML=xhr.responseText;

for (i = 0; i < numberOfQuestions; i++) {
    currentElt = i * numberOfChoices;
    for (j = 0; j < numberOfChoices; j++) {
        currentSelection = form.elements[currentElt + j];
        if (currentSelection.checked) {
            if (currentSelection.value == correctAnswers[i]) {
                numberCorrect++;
                break;
            }
        }
    }
}

<script type="text/javascript">
        /*<![CDATA[*/
        var numberOfQuestions = 10;
        var numberOfChoices = 4;
        var correctAnswers = new Array(10);
        correctAnswers = ["a", "b", "b", "a", "d", "a", "b", "b", "a", "c"];
        function scoreQuiz(form) {
            if (outOfTime == true) {
                window.alert("You have exceeded the time limit of the test." + "\n" + "Please try again.");
                return true;
            }
            var numberCorrect = 0;
            var currentElt;
            var currentSelection;
            for (i = 0; i < numberOfQuestions; i++) {
                currentElt = i * numberOfChoices;
                for (j = 0; j < numberOfChoices; j++) {
                    currentSelection = form.elements[currentElt + j];
                    if (currentSelection.checked) {
                        if (currentSelection.value == correctAnswers[i]) {
                            numberCorrect++;
                            break;
                        }
                    }
                }
            }
            form.correct.value = numberCorrect;
            form.percentage.value = ((numberCorrect / numberOfQuestions) * 100) + "%";
        }
        var remainingTime = 600000;
        var outOfTime = false;
        function timeLeft() {
            if (remainingTime <= 0) {
                outOfTime = true;
            }
            else {
                setTimeout("timeLeft()", (remainingTime));
                remainingTime -= 1;
            }
        }
        /*]]>*/
    </script>