Thank you @elliot ,
i use this code
add_action('admin_init', 'wpse28702_restrictAdminAccess', 1);
function wpse28702_restrictAdminAccess() {
$isAjax = (defined('DOING_AJAX') && true === DOING_AJAX) ? true : false;
if(!$isAjax) {
if(!current_user_can('administrator')) {
wp_die(__('You are not allowed to access this part of the site'));
}
}
}
and everything it’s ok …
thank you very much