function estConnecte() {
    var pacha = 0;
    var argCookie = "id_pacha=";
    var argLength = argCookie.length;
    var cookieLength = document.cookie.length;
    var curPosCookie = 0;
    while (curPosCookie < cookieLength) {
        var debPacha = curPosCookie + argLength;
        if (document.cookie.substring(curPosCookie, debPacha) == argCookie) {
            var finPacha = document.cookie.indexOf(";", debPacha);
            if (finPacha == -1)
                finPacha = cookieLength;
            if (unescape(document.cookie.substring(debPacha, finPacha)) == "0")
                break;
            // connecté
            return 1;
        }
        curPosCookie = document.cookie.indexOf(" ",curPosCookie) + 1;
        if (curPosCookie == 0)
            break;
    }
    // non connecté
    return 0;
}

function seDeconnecter(adresse, nom) {
    if (estConnecte()) {
        document.write("<div>");
        document.write("    <a href=\"" + adresse + "\" class=\"optionMenuVertical\">");
        document.write(         nom);
        document.write("    </a>");
        document.write("</div>");
    }
}