public function checkLogin()
 {
     $db = new Database();
     $con = $db->connectDB();
     $result = $con->query("SELECT gebruikerId FROM gebruikers WHERE gebruikersnaam = '{$this->username}' AND wachtwoord = '{$this->password}' LIMIT 1");
     if ($result->num_rows == 1) {
         return true;
     } else {
         return false;
     }
 }
$sess_obj->checkUserLoged();
//require_once ("functions.php");
//require_once ("functions_as.php");
require_once '../class/Database.php';
require_once '../class/Validation.php';
require_once '../class/Tree.php';
require_once '../class/TreeView.php';
//require_once "../class/TreeViewAs.php";
//$obj_tree_view = new TreeViewAs();
$obj_tree_view = new TreeView();
$obj_tree = new Tree();
$obj_val = new Validation();
$user_id = $sess_obj->sess_user_id;
$id = $_GET["id"];
$obj = new Database();
$obj->connectDB();
if (isset($_POST['go_submit'])) {
    $go = $_POST['go_id'];
    $go = $obj_val->userNameToID($go);
    $child_id = $go;
    $go = getEncrypt($go);
    if ($user_id < $child_id) {
        $status = $obj_tree->userDownlineUser($child_id, $user_id);
        if ($status == "yes") {
            echo "<script>document.location.href='ft_chart.php?id={$go}';</script>";
        } else {
            $go = getEncrypt($user_id);
            echo "<script>document.location.href='ft_chart.php?id={$go}';</script>";
        }
    } else {
        $go = getEncrypt($user_id);