function toggleElement(elementID) {
	var elem = document.getElementById(elementID);
	elem.style.display = (elem.style.display != "none") ? "none" : "";
}

function toggleElements(className) {
	var elems = document.getElementsByTagName("div");
	for (var i = 0; i < elems.length; i++) {
		if (elems[i].className == className) {
			elems[i].style.display = (elems[i].style.display != "none") ? "none" : "";
		}
	}
}

function hideElements(className) {
	var elems = document.getElementsByTagName("div");
	for (var i = 0; i < elems.length; i++) {
		if (elems[i].className == className) {
			elems[i].style.display = "none";
		}
	}
}