Convert the existing MQ4 code to MQ5 code.

The program I have created is in MQ4, I want you to convert the programme to MQ5 language .  I will select only those who can change these two function from MQ4 to MQ5. 

double MaxSpread=4 ;
double MaxSlippage=1 ;
double    gThresholdATR = 1.0;

void lizong_7()
 {
  //+------------------------------------------------------------------------------------------------------------------------------+
  // OrderInfoArray is such that OrderInfoArray[OrderIndex][0] -> OrderOpenTime() & OrderInfoArray[OrderIndex][1] -> OrderTicket() |
  // OrderCount implies Total market and pending order count                                                                       |
  // Index implies the index of Open or Pending order, however it's dynamic and change as any Open or Pending orders get closed    |
  // OrderIndex implies the index of the Open or Pending order !!                                                                      
  //+------------------------------------------------------------------------------------------------------------------------------+
     
   
  // Assigning variable names 
     
  int       OrderInfoArray[30][2];
  int       OrderCount;
  int       Index; 
  int       OrderIndex;

 if (Ask >= iMA(NULL,0,20,0,MODE_SMA,PRICE_MEDIAN,0))
    {
    return;
    }
 if ( (Ask - Bid<=MaxSpread * gThresholdATR * Point()) && (FridayTrade()== false) )
    {
        OrderCount = OrdersTotal() ;
        Index = 0 ;
        for (OrderIndex = 0 ; OrderIndex < OrderCount ; OrderIndex = OrderIndex + 1)
            {
                if (( OrderSelect(OrderIndex,SELECT_BY_POS,MODE_TRADES) && (OrderType() != 1 || OrderSymbol() != Symbol() || OrderMagicNumber() != 2) ))   continue;
                OrderInfoArray[Index][0] = OrderOpenTime();
                OrderInfoArray[Index][1] = OrderTicket();
                Index = Index + 1;
            }
        if (Index > 1)
            {
                ArrayResize(OrderInfoArray,Index,0); 
                ArraySort(OrderInfoArray,0,0,1); 
            }
        for (OrderIndex = 0 ; OrderIndex < Index ; OrderIndex = OrderIndex + 1)
            {
                if ( OrderSelect(OrderInfoArray[OrderIndex][1],SELECT_BY_TICKET,MODE_TRADES) != true || OrderClose(OrderTicket(),OrderLots(),OrderClosePrice(),MaxSlippage,Red) != false )   continue;
                Print("OrderClose() error - ",ErrorDescription(GetLastError())); 
            }
    }
 }

bool FridayTrade()
   {
   //---------------------------------------------------
   // Only trade if FridayTrade() is false. 
   
      if ((Hour()>=15 && DayOfWeek()==5)|| DayOfWeek()==6)
      {
         return true;
      } 
      else 
      {
         return false ;
      }  
   }