function getCookieVal (offset)
{
        var endstr = document.cookie.indexOf (";", offset);
        if (endstr == -1)
                endstr = document.cookie.length;
                return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (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 getCookieVal (j);
                i = document.cookie.indexOf(" ", i) + 1;
                if (i == 0) break;
        }
        return null;
}

function SetCookie (name, value, expiration)
{
        var argv = SetCookie.arguments;
        var argc = SetCookie.arguments.length;
        var expires = (argc > 2) ? argv[2] : null;
        var domain = (argc > 3) ? argv[3] : null;
        var path = (argc > 4) ? argv[4] : "/";
        var secure = (argc > 5) ? argv[5] : false;
        var s = name + "=" + escape (value) +
        ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
        ((path == null) ? "" : ("; path=" + path)) +
        ((domain == null) ? "" : ("; domain=" + domain)) +
        ((secure == true) ? "; secure" : "");
        document.cookie = s + ";"
}

function DeleteCookie (name) {
        var exp = new Date();
        exp.setTime (exp.getTime() - 1);
        // This cookie is history
        var cval = GetCookie (name);
        document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}

var exp = new Date();
var expDays = 60;
exp.setTime(exp.getTime() + (expDays*24*60*60*1000));