pe == "expand") {
						zTree.expandNode(nodes[i], true, null, null, callbackFlag);
					} else if (type == "collapse") {
						zTree.expandNode(nodes[i], false, null, null, callbackFlag);
					} else if (type == "toggle") {
						zTree.expandNode(nodes[i], null, null, null, callbackFlag);
					} else if (type == "expandSon") {
						zTree.expandNode(nodes[i], true, true, null, callbackFlag);
					} else if (type == "collapseSon") {
						zTree.expandNode(nodes[i], false, true, null, callbackFlag);
					}
	