questionList = ["Question1","Question2","Question3","Question4","Question5","Question6","Question7","Question8","Question9","Question10","Question11","Question12","Question13"]
function questionMenu(qName)
{
	for (i=0; i<questionList.length; i++) eval(questionList[i]).style.display = "none";
	qMenu = eval(qName).style;
	if (qMenu.display == 'none') qMenu.display = "block"; else qMenu.display = "none";
}
//question1.html‚±‚±‚Ü‚Å