public void load()
{
Document doc = itsNatDoc.getDocument();
Element parentElement = doc.getElementById("treeCustomId");
ElementTreeNodeStructure structure = FirstLevelTreeStructure.SINGLETON;
ElementTreeNodeRenderer renderer = FirstLevelTreeRenderer.SINGLETON;
ElementGroupManager factory = itsNatDoc.getElementGroupManager();
ElementTreeNodeList tree = factory.createElementTreeNodeList(false,parentElement,true,structure,renderer);
String[] name;
ElementTreeNode treeNode;