Element::checkPermission

protected function checkPermission(Param $param, $permission)
{
	global $USER;
	$rightParam = new RightParam($param);
	$rightParam->setUser($USER);
	$rightParam->setEntityId(Utils::getElementId($param->getParams()));

	$right = new Right($rightParam, new ElementRight($rightParam));
	$right->checkPermission($permission);
	if ($right->hasErrors())
	{
		$this->addErrors($right->getErrors());
	}
}