function menuClick() {
			var elements = this.getElementsByTagName("ul");
			
			if(elements.length > 0) {
				var currentElement = elements[0];
				if (YAHOO.util.Dom.getStyle(currentElement, "display") == "none") {
					YAHOO.util.Dom.setStyle(currentElement, "display", "block");
				}
			}
		}
		
		function checkParent(el) {
			var parentsParent = el.parentNode.parentNode;
			
			if(parentsParent.tagName != "LI") {
				YAHOO.util.Event.addListener(el, "mouseover", menuClick);
			}
		}
		
		function init() {
			var elements = YAHOO.util.Dom.getElementsBy(checkParent, "li", "sidebar");
		}
		
		YAHOO.util.Event.addListener(window, "load", init);