turn this php setcookie("guilanguage", 'EN', 0, "/"); and setcookie("guilanguage", 'FR', 0, "/"); on the javascript cøøkíé on the given code
if($_COOKIE["swithlanguage"]=="en"){
setcookie("guilanguage", 'EN', 0, "/");
}elseif($_COOKIE["swithlanguage"]=="fr_FR"){...