function closeAll() {
	$$(".answer").each(function (e) {
		e.hide();
	});
}

function toggleAnswer(id) {
	var e = $("a_"+id);
	if (e.style.display == "") {
		new Effect.BlindUp(e, {duration:0.3});
	} else {
		new Effect.BlindDown(e, {duration:0.3});
	}
}
var ge = null;
var gel = null;
function toggleOnlyAnswer(id) {
	var c = $("c_"+id);
	var e = $("a_"+id);
	if (e.style.display == "") {
		ge = "c_"+id;
		setTimeout(closeOnly, 320);
		new Effect.BlindUp(e, {duration:0.3});
	} else {
		c.removeClassName("closed-only");
		c.addClassName("open-only");
		new Effect.BlindDown(e, {duration:0.3});
	}
}

function toggleLastAnswer(id) {
	var c = $("c_"+id);
	var e = $("a_"+id);
	if (e.style.display == "") {
		gel = "c_"+id;
		setTimeout(closeLast, 320);
		new Effect.BlindUp(e, {duration:0.3});
	} else {
		c.removeClassName("closed-last");
		c.addClassName("open-last");
		new Effect.BlindDown(e, {duration:0.3});
	}
}

function closeOnly() {
	var c = $(ge);
	c.removeClassName("open-only");
	c.addClassName("closed-only");
}

function closeLast() {
	var c = $(gel);
	c.removeClassName("open-last");
	c.addClassName("closed-last");
}

closeAll();