public function index()
 {
     $session = new class_sessions_admin();
     if ($session->get_login_admin_in()) {
         $page = new render_admin();
         $page->page_trainer();
     } else {
         redirect('admin/home/login');
     }
 }
 public function view_student()
 {
     $session = new class_sessions_admin();
     if ($session->get_login_admin_in()) {
         $page = new render_admin();
         $page->page_supervisor_view_student();
     } else {
         redirect('admin/home/login');
     }
 }
?>
"></script>
    <link href="<?php 
echo site_url('include/form_validation/src/css/bootstrapValidator.css');
?>
" rel="stylesheet">


</head>

<body>

<?php 
$use = new class_loader();
$use->use_lib('admin/sys/class_sessions_admin');
$session = new class_sessions_admin();
if ($session->get_login_admin_in()) {
    ?>
<nav class="navbar navbar-inverse navbar-fixed-top">
    <div class="container-fluid">
        <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar"
                    aria-expanded="false" aria-controls="navbar">
                <span class="sr-only">Toggle navigation</span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
            </button>
            <a class="navbar-brand" href="<?php 
    echo site_url('admin/home');
    ?>
 public function logout()
 {
     $session = new class_sessions_admin();
     $session->remove_login_admin();
     redirect(site_url('admin/home'));
 }