Martingail Expert

Can anyone help me how to do this?

//+------------------------------------------------------------------+
//|                                                      ProjectName |
//|                                      Copyright 2012, CompanyName |
//|                                       http://www.companyname.net |
//+------------------------------------------------------------------+
extern double TakeProfit=10000;
extern double timeframe=0; //0=atual / 1=1M / 60=1H / 240=4H / 1440=1D / 10080=1Semana / 43200=1MES
extern double Lots=0.01;
extern double TrailingStop=0;
extern double Stop_loss_buy=0;
extern double Stop_loss_sell=0;
extern double Price_buy1=0;
extern double Price_sell1=0;
extern double Price_buy2=0;

//---
string lastSignalUsed="No signal";
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int start()
  {
   
   double Price1,Price2;
   int cnt,ticket,total;
   

   Price1=iMA(NULL,timeframe,1,0,MODE_SMA,0,1);         //PREÇO atual
   Price2=iMA(NULL,timeframe,1,0,MODE_SMA,0,2);         //PREÇO anterior
   
   total=OrdersTotal();
   if(total<1)
     {

      if(AccountFreeMargin()<(1*Lots))
        {
         Print("Account Free Margin = ",AccountFreeMargin());
         return(0);
        }

      if(    
              (Price1>Price_buy1 && Price2<Price_buy1)
              
     
      
      
      
      
      )
        {
         ticket=OrderSend(Symbol(),OP_BUY,Lots,Ask,3,Stop_loss_buy,Ask+TakeProfit*Point,"EA SKY TRADE",123456,0,Green);
         if(ticket>0)
           {
            if(OrderSelect(ticket,SELECT_BY_TICKET,MODE_TRADES)) 
               {
               Print("BUY : ",OrderOpenPrice());
               lastSignalUsed="Buy";
               }
           }
         else Print("BUY Error: ",GetLastError());
         return(0);
        }

      if(            
                      (Price1<Price_sell1 && Price2>Price_sell1)
                     
      
      
      
      )
        {
         ticket=OrderSend(Symbol(),OP_SELL,Lots,Bid,3,Stop_loss_sell,Bid-TakeProfit*Point,"EA SKY TRADE",123456,0,Red);
         if(ticket>0)
           {
            if(OrderSelect(ticket,SELECT_BY_TICKET,MODE_TRADES)) 
               {
               Print("SELL : ",OrderOpenPrice());
               lastSignalUsed="Sell";
               }
           }
         else Print("SELL  Error: ",GetLastError());
         return(0);
        }
      return(0);
     }

   for(cnt=0;cnt<total;cnt++)
     {
      if(!OrderSelect(cnt,SELECT_BY_POS,MODE_TRADES))
        {
         Print("OrderSelect() failed with error :  "+GetLastError());
        }
      if(OrderType()<=OP_SELL && OrderSymbol()==Symbol())
        {
         if(OrderType()==OP_BUY)
           {

            if(   //CLOSE BUY
            
                    
                   (Price1<Price_sell1 && Price2>Price_sell1) 
                  
                   
                             
            ) 
              {
               if(!OrderClose(OrderTicket(),OrderLots(),Bid,3,Red))
                 {
                  Print("OrderClose() failed with error :  "+GetLastError());
                  return(0);
                 }
              }

            if(TrailingStop>0)
              {
               if(Bid-OrderOpenPrice()>Point*TrailingStop)
                 {
                  if(OrderStopLoss()<Bid-Point*TrailingStop)
                    {
                     if(!OrderModify(OrderTicket(),OrderOpenPrice(),Bid-Point*TrailingStop,OrderTakeProfit(),0,Gray))
                       {
                        Print("OrderModify() failed with error :  "+GetLastError());
                       }
                     return(0);
                    }
                 }
              }
           }
         else
           {
            if(        //CLOSE SELL
            
            
                                 
                             (Price1>Price_buy1 && Price2<Price_buy1) 
                            
            
            ) 
            
              {
               if(!OrderClose(OrderTicket(),OrderLots(),Ask,3,Lime))
                 {
                  Print("OrderClose() failed with error :  "+GetLastError());
                  return(0);
                 }
              }
            if(TrailingStop>0)
              {
               if((OrderOpenPrice()-Ask)>(Point*TrailingStop))
                 {
                  if((OrderStopLoss()>(Ask+Point*TrailingStop)) || (OrderStopLoss()==0))
                    {
                     if(!OrderModify(OrderTicket(),OrderOpenPrice(),Ask+Point*TrailingStop,OrderTakeProfit(),0,Gray))
                       {
                        Print("OrderModify() failed with error :  "+GetLastError());
                        return(0);
                         }
                       }
                    }
                 }
              }
           }
         }
   return(0);
  }
//+------------------------------------------------------------------+