// Survey Google
function showPoll() {
    try { document.getElementById('poll_frm').style.display = 'block'; } catch (Error) { }
}
function PollDone() {
    var elem = document.getElementById('poll_frm');
    elem.style.display = "none";
    var elemShow = document.getElementById('done_feedback');
    elemShow.style.display = "block";
}

function doResize() {
    writeCookie();
    var elem = document.getElementById('poll_frm');
    elem.style.display = "none";
    var elemShow = document.getElementById('tnx_feedback');
    elemShow.style.display = "block";
}

function getCookie(c_name) {
    if (document.cookie.length > 0) {
        c_start = document.cookie.indexOf(c_name + "=");
        if (c_start != -1) {
            c_start = c_start + c_name.length + 1;
            c_end = document.cookie.indexOf(";", c_start);
            if (c_end == -1) c_end = document.cookie.length;
            return unescape(document.cookie.substring(c_start, c_end));
        }
    }
    return "";
}

function setCookie(c_name, value, expiredays) {
    var exdate = new Date();
    exdate.setDate(exdate.getDate() + expiredays);
    document.cookie = c_name + "=" + escape(value) + ((expiredays == null) ? "" : ";expires=" + exdate.toGMTString());
}

function checkCookie() {
    try {
        poll = getCookie('poll');
        if (poll != null && poll != "") {
            PollDone();
        }
        else {
            showPoll();
        }
    } catch(Error){}
}

function writeCookie() {
    poll = getCookie('poll');
    poll = 'partecipato';
    setCookie('poll', poll, 7);
}