function expandFirst() {
				document.getElementById(expandFirst.arguments[0]).style.display = "block";
				for (var i=1; i<expandFirst.arguments.length; i++) {
					document.getElementById(expandFirst.arguments[i]).style.display = "none";
				}
			}
	function expandCollapse() {
		for (var i=0; i<expandCollapse.arguments.length; i++) {
			var element = document.getElementById(expandCollapse.arguments[i]);
			element.style.display = (element.style.display == "none") ? "block" : "none";
		}
	}