()+" beforeCollapse ]&nbsp;&nbsp;&nbsp;&nbsp;" + treeNode.name );
			return (treeNode.collapse !== false);
		}
		function onCollapse(event, treeId, treeNode) {
			showLog("[ "+getTime()+" onCollapse ]&nbsp;&nbsp;&nbsp;&nbsp;" + treeNode.name);
		}		
		function beforeExpand(treeId, treeNode) {
			className = (className === "dark" ? "":"dark");
			showLog("[ "+getTime()+" beforeExpand ]&nbsp;&nbsp;&nbsp;&nbsp;" + treeNode.name );
			return (treeNode.expand !== false);
		}
		function onExpand(event, treeId, tr