function IsCookie(name) {
    var arg = name + "=";
    var alen = arg.length;
    var clen = document.cookie.length;
    var i = 0;
    while (i < clen) {
        var j = i + alen;
        if (document.cookie.substring(i, j) == arg)
            return true;
        i = document.cookie.indexOf(" ", i) + 1;
        if (i == 0) break;
    }
    return null;
}
var ad_entry = 0;
if (navigator.cookieEnabled && !IsCookie("ad_entry"))
{
    document.cookie = "ad_entry=1";
    ad_entry = 1;
}

function SaveCookie(n, w, e)
{
    var a = new Date();
    a = new Date(a.getTime() + e);
    document.cookie = n + '=' + w + '; expires=' + a.toGMTString() + ';';
}

function GetCookie(n)
{
    a = document.cookie;
    res = '';
    while (a != '')
    {
        while (a.substr(0, 1) == ' ') {
            a = a.substr(1, a.length);
        }
        cookiename = a.substring(0, a.indexOf('='));
        if (a.indexOf(';') != -1)
        {
            cookiewert = a.substring(a.indexOf('=') + 1, a.indexOf(';'));
        }
        else {
            cookiewert = a.substr(a.indexOf('=') + 1, a.length);
        }
        if (n == cookiename) {
            res = cookiewert;
        }
        i = a.indexOf(';') + 1;
        if (i == 0) {
            i = a.length
        }
        a = a.substring(i, a.length);
    }
    return (res)
}