public static function add_page()
 {
     $page = DispletRetsIdxAdminPagesController::add_displet_tools_submenu_page(array('capability' => self::$_capabilities['view_leads'], 'menu_title' => 'Lead Manager', 'page_callback' => array('DispletRetsIdxLeadManagerPageController', 'include_page'), 'page_slug' => self::$_slugs['lead_manager_page']));
     if ($page) {
         add_action('load-' . $page, array('DispletRetsIdxLeadManagerPageController', 'filter_lead_manager_query_vars'));
     }
 }
 protected function _add_page()
 {
     $page = DispletRetsIdxAdminPagesController::add_displet_tools_submenu_page(array('menu_title' => $this->_model['menu_title'], 'page_callback' => array($this, 'render_page'), 'page_slug' => $this->_model['page_slug']));
     if ($page) {
         $this->_add_page_hooks($page);
     }
 }
 public static function add_page()
 {
     DispletRetsIdxAdminPagesController::add_displet_tools_submenu_page(array('menu_title' => 'Search Forms', 'page_callback' => array('DispletRetsIdxSearchFormsPageController', 'render_page'), 'page_slug' => self::$_slugs['search_forms_page']));
 }