double NullPriceForGread(int type)//функция нулевой цены (безубыток) сетки ордеров
  {
   double lots = 0;
   double totaLots = 0;
   double openPrice = 0;
   double prom = 0;
   double NullPrice = 0;

   for(int i=PositionsTotal()-1; i>=0; i--)
     {
      if(m_position.SelectByIndex(i))
        {
         if(m_position.Symbol() == _Symbol)
           {
            if(m_position.PositionType() == type)
              {
               lots = m_position.Volume();
               totaLots += m_position.Volume();
               openPrice = m_position.PriceOpen();
               prom += lots * openPrice;
              }
           }
        }
     }
   if(prom > 0 && totaLots > 0)
      NullPrice = NormalizeDouble(prom/totaLots, _Digits);

   return(NullPrice);
  }
//+------------------------------------------------------------------+