int N, i, Ticket1, Ticket2;
double k, Price1, Price2, val;
double a, b, c, a1, b1;
double sumx = 0.0;
double sumxy = 0.0;
double sumx2 = 0.0;
double ln_maxDev, ln_maxDev1;
double deviation;
double dvalue;
int Orders1 (double a1,double b1,double ln_maxDev1)
   {
   Price1=MathRound((a1+ln_maxDev1-b1+20*Point)*10000)/10000;
   Price2=MathRound((a1-ln_maxDev1-b1-20*Point)*10000)/10000;
   Ticket1=OrderSend(Symbol( ),OP_BUYSTOP,0.1, Price1,3, Price2+10*Point, 0);
   Ticket2=OrderSend(Symbol( ),OP_SELLSTOP,0.1, Price2,3, Price1-10*Point, 0);
   return;   
   }
bool TSs()
   {
   if ((Ask+40*Point)<OrderStopLoss())
      {
      OrderModify(OrderTicket( ),OrderOpenPrice( ),Ask+40*Point,OrderTakeProfit( ),0);
      return(true);
      }  
   return(false);   
   }
bool TSb()
   {
   if ((Bid-40*Point)>OrderStopLoss())
      {
      OrderModify(OrderTicket( ),OrderOpenPrice( ),Bid-40*Point,OrderTakeProfit( ),0);
      return(true);
      }  
   return(false);   
   }
int start()
    {
    if ((iBars(0,0)!=N)&&(iBars(0,0)>7))
      {
      N=iBars(0,0);
      double value;
      double sumy = 0;
      for ( i = 1; i < 8; i++)
	     {
		  value = Close[i];
		  sumy += value;
		  sumxy += value * i;
		  sumx += i;
		  sumx2 += i * i;
	     }
        c = sumx2 * 8 - sumx * sumx;
	     b = (sumxy * 8 - sumx * sumy) / c;
	     a = (sumy - sumx * b) / 8;
	     ln_maxDev = 0;
	     for (i = 0; i < 8; i++)
	        {
		     dvalue = a + b * (i - 1);
		     deviation = MathAbs(Close[i] - dvalue);
		     if (deviation >= ln_maxDev)
		     {
		     ln_maxDev = deviation;
		     }
	        }
   k=MathAbs(7*b);
   val=2*ln_maxDev;
      if (OrderSelect(Ticket1, SELECT_BY_TICKET)==True)
         {    
         if (OrderType()==OP_BUYSTOP)
                           {
                           if (OrderSelect(Ticket2, SELECT_BY_TICKET)==True)
                              {
                              if (OrderType()==OP_SELLSTOP)
                                 {
                                 if ((k<0.0015)&&(val<=0.004))
                                    {
                                    OrderDelete(Ticket1);
                                    OrderDelete(Ticket2);
                                    Orders1(a,b,ln_maxDev);
                                    }
                                 }
                              else
                                 {    
                                 if (OrderCloseTime()==0)
                                    {
                                    OrderDelete(Ticket1);
                                    TSs();
                                    }
                                 else 
                                    {   
                                    OrderDelete(Ticket1);
                                    if ((k<0.0015)&&(val<=0.004))
                                       {
                                       Orders1(a,b,ln_maxDev);
                                       }
                                    }
                                 }
                              }
                           else    
                              {
                               if ((k<0.0015)&&(val<=0.004))
                                    {
                                    OrderDelete(Ticket1);
                                    Orders1(a,b,ln_maxDev);
                                    }
                              }
                           }     
            else 
                         {
                         if (OrderCloseTime()==0)
                            {
                            if ((OrderSelect(Ticket2, SELECT_BY_TICKET)==True)&&(OrderCloseTime()==0))
                              {
                              OrderDelete(Ticket2);
                              }
                              OrderSelect(Ticket1, SELECT_BY_TICKET);
                              TSb();
                            }
                         else
                            {
                            if (OrderSelect(Ticket2, SELECT_BY_TICKET)==True)
                              {
                              if (OrderType()==OP_SELLSTOP)
                                 {
                                 if ((k<0.0015)&&(val<=0.004))
                                    {
                                    OrderDelete(Ticket2);
                                    Orders1(a,b,ln_maxDev);
                                    }
                                 }
                              else
                                 {
                                 if (OrderCloseTime()==0)
                                    {
                                    TSs();
                                    }
                                 else 
                                    {   
                                    if ((k<0.0015)&&(val<=0.004))
                                       {
                                       Orders1(a,b,ln_maxDev);
                                       }
                                    }
                                 }
                              }
                           else
                              {       
                              if ((k<0.0015)&&(val<=0.004))
                                 {
                                 Orders1(a,b,ln_maxDev);
                                 }
                              }
                           }
        }
                        }
      else
         {
         if (OrderSelect(Ticket2, SELECT_BY_TICKET)==True)
             {
             if (OrderType()==OP_SELLSTOP)
                {
                if ((k<0.0015)&&(val<=0.004))
                   {
                   OrderDelete(Ticket2);
                   Orders1(a,b,ln_maxDev);
                   }
                }
             else
                {
                if (OrderCloseTime()==0)
                   {
                    TSs();
                   }
                else 
                   {   
                   if ((k<0.0015)&&(val<=0.004))
                     {
                     Orders1(a,b,ln_maxDev);
                     }
                   }
                }
             }
         else
             {       
             if ((k<0.0015)&&(val<=0.004))
                   {
                   Orders1(a,b,ln_maxDev);
                   }
             }
         }
        
      }
    else
       {  
       if (OrderSelect(Ticket1, SELECT_BY_TICKET)==True)
          {
          if (OrderType()==OP_BUY)
            {
            if (OrderCloseTime()==0)
               {
               if ((OrderSelect(Ticket2, SELECT_BY_TICKET)==True)&&(OrderCloseTime()==0))
                   {
                   OrderDelete(Ticket2);
                   }
                   OrderSelect(Ticket1, SELECT_BY_TICKET);
                  TSb();
               }
            else  
               {
               if (OrderSelect(Ticket2, SELECT_BY_TICKET)==True)
                  {
                  if (OrderType()==OP_SELL)
                     {
                     if (OrderCloseTime()==0)
                        {
                        TSs();
                        }
                     }
                  }
               }
             }     
         else 
            {
            if (OrderSelect(Ticket2, SELECT_BY_TICKET)==True)
               {
               if (OrderType()==OP_SELL)
                  {
                  if (OrderCloseTime()==0)
                     {
                     OrderDelete(Ticket1);
                     TSs();
                     }
                  }
               }
            } 
          }
      else  
            {
            if (OrderSelect(Ticket2, SELECT_BY_TICKET)==True)
               {
               if (OrderType()==OP_SELL)
                  {
                  if (OrderCloseTime()==0)
                     {
                     TSs();
                     }
                  }
               }
            }
      }
        
return(0);
}