function getParameter(uriFragment, parameterName)
      {
      var result = "null";

      var parameterName = parameterName + "=";
      if (uriFragment.length > 0)
        {
        var begin = uriFragment.indexOf(parameterName);
        if (begin != -1)
          {
          begin += parameterName.length;
          end = uriFragment.indexOf ("&", begin);
          if (end == -1)
            end = uriFragment.length;

          var substring = uriFragment.substring(begin, end);
          var result = unescape(substring);
          }
        }

      return result;
      }

    function goToURL(baseURL)
      {
      var url = baseURL;
      var parameters = window.top.location.search;
      if (parameters != null)
        url = baseURL + parameters;

      window.top.location = url;

      return false;
      }