/**
 * Check if the current user can access to the provided page id.
 * If not, the user is redirected to the login page.
 *
 * @method imCheckAccess
 * 
 * @param {string} $page The id of the page to check
 * @param {string} $pathToRoot The path to reach the root from the current folder
 */
function imCheckAccess($page, $pathToRoot = "")
{
    $pa = imPrivateArea::getInstance();
    $stat = $pa->checkAccess($page);
    if ($stat !== 0) {
        $pa->savePage();
        header("Location: " . $pathToRoot . "imlogin.php?loginstatus=" . $stat);
        exit;
    }
}