public function index()
 {
     if (!isset($_GET['p'])) {
         $_GET['p'] = 1;
     }
     if (!isset($_GET['q'])) {
         $_GET['q'] = "";
     }
     if (!isset($_GET['criterio'])) {
         $_GET['criterio'] = "alumno_cca.nombres";
     }
     $obj = new alumno_cca();
     $data = array();
     //"alumno_cca.idalumno" => "codigo"
     if (isset($_GET['a'])) {
         $data['data'] = $obj->alumnos_matriculados($_GET['q'], $_GET['p'], $_GET['criterio']);
         $data['query'] = $_GET['q'];
         $data['pag'] = $this->Pagination(array('rows' => $data['data']['rowspag'], 'url' => 'index.php?controller=alumno_cca&action=index&a=b', 'query' => $_GET['q']));
         $cols = array("Id", "Nombres y Apellidos", "Identificacion");
         $opt = array("alumno_cca.nombres" => "nombres");
         $data['a'] = $_GET['a'];
         $data['grilla_cca'] = $this->grilla_cca("alumno_cca", "cronograma_cca", "index", $cols, $data['data']['rows'], $opt, $data['pag'], true);
     } else {
         $data['data'] = $obj->index($_GET['q'], $_GET['p'], $_GET['criterio']);
         $data['query'] = $_GET['q'];
         $data['pag'] = $this->Pagination(array('rows' => $data['data']['rowspag'], 'url' => 'index.php?controller=alumno_cca&action=index', 'query' => $_GET['q']));
         $cols = array("Id", "Nombres", "Apellidos", "Identificacion", "Tipo alumno   ");
         $opt = array("alumno_cca.nombres" => "nombres");
         $data['grilla_cca'] = $this->grilla_cca("alumno_cca", NULL, NULL, $cols, $data['data']['rows'], $opt, $data['pag'], false, false, true, true);
     }
     $view = new View();
     $view->setData($data);
     if (isset($_GET['a'])) {
         $view->setTemplate('../view/alumno_cca/_Index.php');
         $view->setLayout('../template/List.php');
         return $view->render();
     } else {
         $view->setTemplate('../view/alumno_cca/_Index.php');
         $view->setLayout('../template/Layout.php');
         $view->render();
     }
 }