function headerOnLoad(){
	var guestName;
    var hasRC;
    var guestId;
    var guestEmail; 
    var cookieContent = getCookie('idToken');
    if (cookieContent !== ''){
        const parseToken = jwtDecode(cookieContent);
        firstParam = parseToken.sub;
        guestName = parseToken.pro.fn;
        guestEmail = parseToken.pro.em;
    }
    if (guestName !== undefined && guestName != null){
        document.getElementById('guestName').innerHTML = guestName;
    }

}