function initShowHide(titleElemName, bodyElemName) {
	$$(titleElemName).each(
		function (elem) {
			elem.onmouseover = function () {this.style.cursor	= "pointer";}
			elem.onmouseout = function () {this.style.cursor	= "default";}
			elem.onclick = function () {
				Element.toggle(this.next());
			}
		}
	);
	$$(bodyElemName).each(
		function (elem) {
			elem.setStyle({display:'none'});
		}
	);
}
Event.observe(window, 'load', function(){initShowHide('dt', 'dd')}, false);