function getCookie(nameOfCookie)
        {if (document.cookie.length > 0)
                {begin = document.cookie.indexOf(nameOfCookie + "=");
                 if (begin != -1)
                        begin += nameOfCookie.length + 1;
                 else
                        return null;
                 end = document.cookie.indexOf(";", begin);
                 if (end == -1)
                        end = document.cookie.length;
                 return unescape(document.cookie.substring(begin, end));
                 }

         return null;
         }

var nombreclarin = unescape(getCookie("UC"));
var regCookieLogin = getCookie("REG");
var controlCookieLogin = getCookie("Control");