static function ApplyDynamicGroup($_chatObj = null) { if (!empty($_GET[GET_EXTERN_DYNAMIC_GROUP])) { if ($_chatObj != null && empty($_chatObj->Forward)) { $_chatObj->LoadForward(); } if ($_chatObj != null && !empty($_chatObj->Forward)) { return; } $tgroup = Communication::ReadParameter(GET_EXTERN_DYNAMIC_GROUP, ""); if (isset(Server::$Groups[$tgroup]) && Server::$Groups[$tgroup]->IsDynamic) { VisitorChat::$DynamicGroup = $tgroup; } } }