MACD multi

//+------------------------------------------------------------------+
//|                                                  MACD multi .mq4 |
//|                                            Oleg Krinichny © 2009 |
//|                                                                  |
//+------------------------------------------------------------------+

extern string Instrument = "EURUSD";
extern double Lots = 0.1;
extern int    TakeProfit = 50;
extern int    TrailingStop = 0;
extern int    StopLoss = 50;
extern int    FirstOpenLevel = 5;
extern int    LastOpenLevel = 20;
extern int    Slope = 2;
extern int    CloseLevel = 20;

//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int start()
{
   double MacdCurrent, MacdPrevious, SignalCurrent, SignalPrevious;
   int    i, total, p1, p2, p3, p4, p5, p6, p7, p8, p9;
  
   MacdCurrent=iMACD(NULL,0,12,26,9,PRICE_CLOSE,MODE_MAIN,0);
   MacdPrevious=iMACD(NULL,0,12,26,9,PRICE_CLOSE,MODE_MAIN,1);
   SignalCurrent=iMACD(NULL,0,12,26,9,PRICE_CLOSE,MODE_SIGNAL,0);
   SignalPrevious=iMACD(NULL,0,12,26,9,PRICE_CLOSE,MODE_SIGNAL,1);
      
   p1=0; p2=0; p3=0; p4=0; p5=0; p6=0; p7=0; p8=0; p9=0;
      
     OrderSelect(0,SELECT_BY_POS,MODE_TRADES);
     
     if(OrderSymbol()=="EURUSD") {p1=1;}
     if(OrderSymbol()=="GBPUSD") {p2=1;}
     if(OrderSymbol()=="USDCHF") {p3=1;}
     if(OrderSymbol()=="USDJPY") {p4=1;}
     if(OrderSymbol()=="EURCHF") {p5=1;}
     if(OrderSymbol()=="EURGBP") {p6=1;}
     if(OrderSymbol()=="AUDUSD") {p7=1;}
     if(OrderSymbol()=="USDCAD") {p8=1;}
     if(OrderSymbol()=="EURJPY") {p9=1;}
      
     OrderSelect(1,SELECT_BY_POS,MODE_TRADES);
     
     if(OrderSymbol()=="EURUSD") {p1=1;}
     if(OrderSymbol()=="GBPUSD") {p2=1;}
     if(OrderSymbol()=="USDCHF") {p3=1;}
     if(OrderSymbol()=="USDJPY") {p4=1;}
     if(OrderSymbol()=="EURCHF") {p5=1;}
     if(OrderSymbol()=="EURGBP") {p6=1;}
     if(OrderSymbol()=="AUDUSD") {p7=1;}
     if(OrderSymbol()=="USDCAD") {p8=1;}
     if(OrderSymbol()=="EURJPY") {p9=1;}
     
     OrderSelect(2,SELECT_BY_POS,MODE_TRADES);
     
     if(OrderSymbol()=="EURUSD") {p1=1;}
     if(OrderSymbol()=="GBPUSD") {p2=1;}
     if(OrderSymbol()=="USDCHF") {p3=1;}
     if(OrderSymbol()=="USDJPY") {p4=1;}
     if(OrderSymbol()=="EURCHF") {p5=1;}
     if(OrderSymbol()=="EURGBP") {p6=1;}
     if(OrderSymbol()=="AUDUSD") {p7=1;}
     if(OrderSymbol()=="USDCAD") {p8=1;}
     if(OrderSymbol()=="EURJPY") {p9=1;}
     
     OrderSelect(3,SELECT_BY_POS,MODE_TRADES);
     
     if(OrderSymbol()=="EURUSD") {p1=1;}
     if(OrderSymbol()=="GBPUSD") {p2=1;}
     if(OrderSymbol()=="USDCHF") {p3=1;}
     if(OrderSymbol()=="USDJPY") {p4=1;}
     if(OrderSymbol()=="EURCHF") {p5=1;}
     if(OrderSymbol()=="EURGBP") {p6=1;}
     if(OrderSymbol()=="AUDUSD") {p7=1;}
     if(OrderSymbol()=="USDCAD") {p8=1;}
     if(OrderSymbol()=="EURJPY") {p9=1;}
     
     OrderSelect(4,SELECT_BY_POS,MODE_TRADES);
     
     if(OrderSymbol()=="EURUSD") {p1=1;}
     if(OrderSymbol()=="GBPUSD") {p2=1;}
     if(OrderSymbol()=="USDCHF") {p3=1;}
     if(OrderSymbol()=="USDJPY") {p4=1;}
     if(OrderSymbol()=="EURCHF") {p5=1;}
     if(OrderSymbol()=="EURGBP") {p6=1;}
     if(OrderSymbol()=="AUDUSD") {p7=1;}
     if(OrderSymbol()=="USDCAD") {p8=1;}
     if(OrderSymbol()=="EURJPY") {p9=1;}
   
   total=OrdersTotal();
   for(i=0;i<total;i++)
   {
     OrderSelect(i,SELECT_BY_POS,MODE_TRADES);
        
     if(OrderSymbol()==Instrument)
      {
         if(OrderType()==OP_BUY) 
          {
            if(MacdPrevious-SignalPrevious-MacdCurrent+SignalCurrent>CloseLevel*0.1*Point)
                {
                 OrderClose(OrderTicket(),OrderLots(),Bid,3,Violet);
                 return(0);
                }
            if(TrailingStop>0)  
              {      
               if(Bid-OrderOpenPrice()>Point*TrailingStop)
                 {
                  if(OrderStopLoss()<Bid-Point*TrailingStop || OrderStopLoss()==0)
                    {
                     OrderModify(OrderTicket(),OrderOpenPrice(),Bid-Point*TrailingStop,OrderTakeProfit(),0,Green);
                     return(0);
                    }
                 }
              }
           }
          if(OrderType()==OP_SELL)
           {
            if(SignalPrevious-MacdPrevious-SignalCurrent+MacdCurrent>CloseLevel*0.1*Point)
              {
               OrderClose(OrderTicket(),OrderLots(),Ask,3,Violet);
               return(0);
              }
            if(TrailingStop>0)  
              {         
               if(OrderOpenPrice()-Ask>Point*TrailingStop)
                 {
                  if(OrderStopLoss()>Ask+Point*TrailingStop || OrderStopLoss()==0)
                    {
                     OrderModify(OrderTicket(),OrderOpenPrice(),Ask+Point*TrailingStop,OrderTakeProfit(),0,Red);
                     return(0);
                    }
                 }
              }
           }
        }
     }
   
   total=OrdersTotal();  
   if(total<5)
   {
     if((Instrument=="EURUSD" && p1<1) || (Instrument=="GBPUSD" && p2<1) || 
        (Instrument=="USDCHF" && p3<1) || (Instrument=="USDJPY" && p4<1) ||
        (Instrument=="EURCHF" && p5<1) || (Instrument=="EURGBP" && p6<1) ||
        (Instrument=="AUDUSD" && p7<1) || (Instrument=="USDCAD" && p8<1) ||
        (Instrument=="EURJPY" && p9<1)) 
      {
        if(MacdCurrent<0 && MacdCurrent-SignalCurrent>SignalCurrent*FirstOpenLevel*(-0.01)
           && MacdCurrent-SignalCurrent<SignalCurrent*LastOpenLevel*(-0.01)
           && MacdCurrent-MacdPrevious>MacdPrevious*Slope*(-0.01)
           && MacdPrevious-SignalPrevious-MacdCurrent+SignalCurrent<(CloseLevel-10)*0.1*Point)  
          {
           OrderSend(Symbol(),OP_BUY,Lots,Ask,3,Ask-StopLoss*Point,Ask+TakeProfit*Point,"",0,0,Green);
           return(0); 
          }   
      
         if(MacdCurrent>0 && SignalCurrent-MacdCurrent>SignalCurrent*FirstOpenLevel*0.01
            && SignalCurrent-MacdCurrent<SignalCurrent*LastOpenLevel*0.01
            && MacdPrevious-MacdCurrent>MacdPrevious*Slope*0.01
            && SignalPrevious-MacdPrevious-SignalCurrent+MacdCurrent<(CloseLevel-10)*0.1*Point)
          {
           OrderSend(Symbol(),OP_SELL,Lots,Bid,3,Bid+StopLoss*Point,Bid-TakeProfit*Point,"",0,0,Red);
           return(0); 
          }
       }
    }
}