function getCookie(Name) { 
    var search = Name + '=';
    var returnvalue = '';
    if (document.cookie.length > 0) {
        offset = document.cookie.indexOf(search);
        if (offset != -1) { 
            offset += search.length;
            end = document.cookie.indexOf(';', offset);
            if (end == -1) end = document.cookie.length;
            returnvalue = unescape(document.cookie.substring(offset, end));
        }
    }
    return returnvalue;
}