// FONTIONS STANDARD DE GESTION DE COOKIES

    function setCookie(name, value, expires, path, domain, secure) {
      var curCookie = name + "=" + escape(value) +
          ((expires) ? "; expires=" + expires.toGMTString() : "") +
          ((path) ? "; path=" + path : "") +
          ((domain) ? "; domain=" + domain : "") +
          ((secure) ? "; secure" : "");
          
      document.cookie = curCookie;
    }

    function getCookie(name) {
      var dc = document.cookie;
      var prefix = name + "=";
      var begin = dc.indexOf("; " + prefix);
      if (begin == -1) {
        begin = dc.indexOf(prefix);
        if (begin != 0) return null;
      } else
        begin += 2;
      var end = document.cookie.indexOf(";", begin);
      if (end == -1)
        end = dc.length;
      return unescape(dc.substring(begin + prefix.length, end));
    }

    // name - name of the cookie
    // [path] - path of the cookie (must be same as path used to create cookie)
    // [domain] - domain of the cookie (must be same as domain used to create cookie)
    // * path and domain default if assigned null or omitted if no explicit argument proceeds

    function deleteCookie(name, path, domain) {
      if (getCookie(name)) {
        document.cookie = name + "=" + 
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "") +
        "; expires=Thu, 01-Jan-70 00:00:01 GMT";
      }
    }