//----------------------------------
unsigned int incParam(unsigned int val, unsigned int low,unsigned int high)
{
  unsigned int result = val;
  
  if(result >= high) result = low;
  else result++;
  return result;
}
//----------------------------------

//----------------------------------
unsigned int decParam(unsigned int val, unsigned int low,unsigned int high)
{
  unsigned int result = val;
  
  if(result <= low) result = high;
  else result--;
  return result;
}
//----------------------------------

              if(KEYBOARD.key_status & MENU_UP_KEY)
              {
                common_val = 1; //изменение параметра
                
                if(common_index == 0)
                {
                  //day
                  if( (LocalTime.RTC_Mon == 2) && ((LocalTime.RTC_Year % 4) == 0) )
                  {
                    //високосный год
                    LocalTime.RTC_Mday = incParam(LocalTime.RTC_Mday, 1, MONTH_LIMIT_DAY[LocalTime.RTC_Mon]+1);
                  }
                  else
                  {
                    LocalTime.RTC_Mday = incParam(LocalTime.RTC_Mday, 1, MONTH_LIMIT_DAY[LocalTime.RTC_Mon]);
                  }
                  
                }
                else if(common_index == 1)
                {
                  LocalTime.RTC_Mon = incParam(LocalTime.RTC_Mon, 1, 12);
                }
                else if(common_index == 2)
                {
                  LocalTime.RTC_Year = incParam(LocalTime.RTC_Year, 2011, 2099);
                }
                else if(common_index == 3)
                {
                  LocalTime.RTC_Hour = incParam(LocalTime.RTC_Hour, 0, 23);
                }
                else if(common_index == 4)
                {
                  LocalTime.RTC_Min = incParam(LocalTime.RTC_Min, 0, 59);
                }
                else if(common_index == 5)
                {
                  LocalTime.RTC_Sec = incParam(LocalTime.RTC_Sec, 0, 59);
                }
                
                RTC_Display_Time(&LocalTime);
                
                //задержка отображения
                setServiceTimeoutStatus(MENU_KEY_SHIFT_TIMEOUT, 35);
                  
                return;
              }

        case evUp:
            if (rtc_adjustment)
            {    if (!(rtc_adjustment&1))
                    Change(    1);
                else
                    Change( 10);
            }
        break;

        case evDn:
            if (rtc_adjustment)
            {    if (!(rtc_adjustment&1))
                    Change(-1);
            else
                    Change(-10);
            }
        break;

const char max[13]    = {0,31,31,11,11,134,134,23,23,59,59,59,59};
const char min[13]    = {0,1 , 1, 0, 0, 109,109, 0, 0, 0, 0, 0, 0};

void Change(sint dif )
{    int    my_max=max[rtc_adjustment];
    int    my_min=min[rtc_adjustment];
     *rtc_ptr+=dif;
    if (dif>0)
        {    if (*rtc_ptr>my_max) *rtc_ptr=my_max;}
    else
        {    if (*rtc_ptr<my_min) *rtc_ptr=my_min; }
}