name = new String[] { "Jose", "Arranz" };
treeNode = tree.addTreeNode(name);
nodeList = treeNode.getChildTreeNodeList();
nodeList.setElementTreeNodeStructure(SecondLevelTreeStructure.SINGLETON);
nodeList.setElementTreeNodeRenderer(SecondLevelTreeRenderer.SINGLETON);
nodeList.addTreeNode("Andr�s");
nodeList.addTreeNode("Pepa");
name = new String[] { "Antonio", "P�rez" };
treeNode = tree.addTreeNode(name);
nodeList = treeNode.getChildTreeNodeList();