var maxTab = 8;

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

function getCookie(cookie_name) {
    if (document.cookie.length > 0) {
        c_start = document.cookie.indexOf(cookie_name + "=");
        if (c_start != -1) {
            c_start = c_start + cookie_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 clearTabs() {
    for (i = 1; i <= maxTab; i++) {
        var tab = document.getElementById("menuTab_" + i);
        tab.className = "";

        var a = document.getElementById("taba_" + i);
        a.style.display = "none";

        var b = document.getElementById("tabb_" + i);
        b.style.display = "none";
    }
}

function selectTab(tabNo) {
    clearTabs();
    var tab = document.getElementById("menuTab_" + tabNo);
    tab.className = "selected";
    tab.blur();

    var a = document.getElementById("taba_" + tabNo);
    a.style.display = "block";

    var b = document.getElementById("tabb_" + tabNo);
    b.style.display = "block";

    //setCookie('lastTab', tabNo, 365);
}

function prepareTab(tabNo) {
    //var lastTab = getCookie('lastTab');
    //if (lastTab == null || lastTab == '') selectTab(tabNo)
    //else selectTab(lastTab);
    selectTab(tabNo);
}