if(OrderOpenPrice()>= Bid - TrailingStop  || OrderStopLoss () == 0 )
             {
               if(OrderStopLoss() != (OrderOpenPrice() + NormalizeDouble(Bid - TrailingStop*Point,Digits )))
                  if( OrderStopLoss() > Bid - OrderStopLoss() + TrailingStep*Point)
                     {
                        SL =  Bid - TrailingStop*_Point;
                          {
                               for(int i = OrdersTotal()-1; i>=0; i--)
                                  {
                                      if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES))
                                        {
                      
                                           if(OrderSymbol() == Symbol() && OrderMagicNumber() == Magic && OrderType() == otype)
                                           if(OrderModify(OrderTicket(), OrderOpenPrice(),  SL, 0, 0, Yellow))
                                                         Print(" OrderModify Ok!");
                                                     else
                                                         Print(" OrderModify Error!");
                                       } 
                                 }     
           
                          }
                    } 
             }