ntNode();
						if (newNode === curExpandNode) {
							newParents = null;
							break;
						} else if (newNode) {
							newParents.push(newNode);
						}
					}
					if (newParents!=null) {
						var oldNode = curExpandNode;
						var oldParents = [];
						while (oldNode) {
							oldNode = oldNode.getParentNode();
							if (oldNode) {
								oldParents.push(oldNode);
							}
						}
						if (newParents.length>0) {
							zTree.expandNode(oldParents[Math.abs(oldParents.length-newParents.length)-1],