Меню в админке. Пункт 4-го уровня - Разработка расширений для Joomla 2.5

	/**
	 * Get a list of the authorised, non-special components to display in the components menu.
	 *
	 * @param	boolean	$authCheck	An optional switch to turn off the auth check (to support custom layouts 'grey out' behaviour).
	 *
	 * @return	array	A nest array of component objects and submenus
	 * @since	1.6
	 */
	public static function getComponents($authCheck = true)
	{
		// Initialise variables.
		$lang	= JFactory::getLanguage();
		$user	= JFactory::getUser();
		$db		= JFactory::getDbo();
		$query	= $db->getQuery(true);
		$result	= array();
		$langs	= array();

		// Prepare the query.
		$query->select('m.id, m.title, m.alias, m.link, m.level, m.parent_id, m.img, e.element');
		$query->from('#__menu AS m');

		// Filter on the enabled states.
		$query->leftJoin('#__extensions AS e ON m.component_id = e.extension_id');
		$query->where('m.client_id = 1');
		$query->where('e.enabled = 1');
		$query->where('m.id > 1');

		// Order by lft.
		$query->order('m.level, m.lft');

		$db->setQuery($query);
		// component list
		$components	= $db->loadObjectList();

		// Parse the list of extensions.
		foreach ($components as &$component) {
			// Trim the menu link.
			$component->link = trim($component->link);

			if ($component->parent_id == 1) {
				// Only add this top level if it is authorised and enabled.
				if ($authCheck == false || ($authCheck && $user->authorise('core.manage', $component->element))) {
					// Root level.
					$result[$component->id] = $component;
					if (!isset($result[$component->id]->submenu)) {
						$result[$component->id]->submenu = array();
					}

					// If the root menu link is empty, add it in.
					if (empty($component->link)) {
						$component->link = 'index.php?option='.$component->element;
					}

					if (!empty($component->element)) {
						// Load the core file then
						// Load extension-local file.
						$lang->load($component->element.'.sys', JPATH_BASE, null, false, false)
						||	$lang->load($component->element.'.sys', JPATH_ADMINISTRATOR.'/components/'.$component->element, null, false, false)
						||	$lang->load($component->element.'.sys', JPATH_BASE, $lang->getDefault(), false, false)
						||	$lang->load($component->element.'.sys', JPATH_ADMINISTRATOR.'/components/'.$component->element, $lang->getDefault(), false, false);
					}
					$component->text = $lang->hasKey($component->title)? JText::_($component->title) : $component->alias;
				}
			} else {
				if($component->parent_id ==1233){
					
				}

				if($component->level == 3){
					// Sub-menu level.
					if (isset($result[$parent_id])) {
						if (!isset($result[$parent_id]->submenu[$component->parent_id]->submenu)) {
							$result[$parent_id]->submenu[$component->parent_id]->submenu = array();
						}
						// Add the submenu link if it is defined.
						if (isset($result[$parent_id]->submenu[$component->parent_id]->submenu) && !empty($component->link)) {
							$component->text = $lang->hasKey($component->title)? JText::_($component->title) : $component->alias;
							$result[$parent_id]->submenu[$component->parent_id]->submenu[$component->id] = &$component;
						}
					}
				}
				else{
					// Sub-menu level.
					$parent_id = $component->parent_id;
					if (isset($result[$parent_id])) {
						// Add the submenu link if it is defined.
						if (isset($result[$parent_id]->submenu) && !empty($component->link)) {
							$component->text = $lang->hasKey($component->title)? JText::_($component->title) : $component->alias;
							$result[$parent_id]->submenu[$component->id] = &$component;
						}
					}
				}
			}
		}

		$result = JArrayHelper::sortObjects($result, 'text', 1, true, $lang->getLocale());

		return $result;
	}

$menu->addChild(new JMenuNode($sub->text, $sub->link, $sub->img));

				if (!empty($sub->submenu))
				{
					// This element has a submenu.
					$menu->addChild(new JMenuNode($sub->text, $sub->link, $sub->img), true);
					foreach ($sub->submenu as $s)
					{
						$menu->addChild(new JMenuNode($s->text, $s->link, $s->img));
					}
					$menu->getParent();
				}
				else
				{
					$menu->addChild(new JMenuNode($sub->text, $sub->link, $sub->img));
				}