// Ensures correct answer was selected when adding questions
function SpecifiedCorrectAnswer(f) {
	var IsAnswered = false;
	// Loop over all answers
	for (iAnswer=0; iAnswer < f.correct.length; iAnswer++) {
		// Is any answer checked?
		if (f.correct[iAnswer].checked) {
			IsAnswered = true;
		}
	}
	// If the question wasn't answered, abort submittal
	if (!IsAnswered) {
		alert('You must specify the correct answer.');
		return false;
	}
	return true;
}