//(un)subscribe namespace tab
if (!empty($conf["useacl"]) &&
    !empty($conf["subscribers"]) &&
    !empty($loginname)){ //$loginname was defined within main.php
    if (empty($INFO["subscribedns"])){ //$INFO comes from DokuWiki core
        $_vector_tabs_right["ca-watchns"]["href"] = wl(cleanID(getID()), array("do" => "subscribens"), false, "&");
        $_vector_tabs_right["ca-watchns"]["text"] = $lang["vector_subscribens"]; 
    }else{
        $_vector_tabs_right["ca-watchns"]["href"] = wl(cleanID(getID()), array("do" => "unsubscribens"), false, "&");
        $_vector_tabs_right["ca-watchns"]["text"] = $lang["vector_unsubscribens"]; 
    }
}