/* qes check
----------------------------------------------- */
function qesCheck() {

	var qes0 = document.getElementById("qes0");
	var qes1 = document.getElementById("qes1");
	var qes3 = document.getElementById("qes3");

	var ans0 = document.getElementById("ans0");
	var ans1 = document.getElementById("ans1");
	var ans2 = document.getElementById("ans2");

	ans0.style.display = "none";
	ans1.style.display = "none";
	ans2.style.display = "none";

	if (qes0.checked) { ans0.style.display = "block"; }
	if (qes1.checked) { ans1.style.display = "block"; }
	if (qes3.checked) { ans2.style.display = "block"; }
}