need help please

 
Please, I request your help so that this program can only be executed on the 4th Period and not on the other periods Thank you for your assistance

HERE'S THE PROGRAM CODE

//+------------------------------------------------------------------+

//|                                                  FORXY TRADIE

//|                      Copyright © 2006 Sunwest3d                  |

//|                                                                  |

//+------------------------------------------------------------------+


extern double Long_Entry_pdr = 5;

extern double Short_Entry_pdr = 5;

extern double Long_stop_pdr = 3;

extern double Short_stop_pdr = 3;

extern double Lots_Acc_Equity = 1;

extern double TrailingStop_pdr = 5;

extern double TakeProfit = 200;

extern double Slippage = 3;


extern double TrailingStopMode = true;

double TrailingStop;


int    Hour_between_Period = 24;


int Current_day,Previous_day;

int Previous_hour=0;


double Lots=1.0;

double yesterday_high=0;

double yesterday_low=0;

double yesterday_close=0;

double today_open=0;

double today_long_SL=0; 

double today_short_SL=0;

double today_buy=0;

double today_sell=0;

double yesterday_range=0;


double Acc_Start_Equity;


string EAName = "FORXY";         // identifies the EA

int    uniqueMagic = 20060122;   // Magic number of the trades

int IsPositionOpen=false;


//datetime Last_long_time=0, Last_short_time=0;


void CheckOpenOrders()

{

  int total = OrdersTotal();

 {

  for(int i=total-1;i>=0;i--)

    OrderSelect(i, SELECT_BY_POS);

    int type    = OrderType();

    bool result = false;

    

    if ( OrderSymbol()==Symbol() && ( (OrderMagicNumber() == uniqueMagic) || (OrderComment() == EAName)) )  // only look if myEA and symbol...

     {

           //Close opened long positions

         if ( type == OP_BUY && OrderProfit()>0)

            {    

            result = OrderClose( OrderTicket(), OrderLots(), MarketInfo(OrderSymbol(), MODE_BID), Slippage, Green );

            IsPositionOpen=false;

            }

           //Close opened short positions

         if ( type == OP_SELL && OrderProfit()>0)   

            {

            result = OrderClose( OrderTicket(), OrderLots(), MarketInfo(OrderSymbol(), MODE_ASK), Slippage, Red );

            IsPositionOpen=false;

            }

      }

  }

  return;

}


int init()

{

Acc_Start_Equity=AccountEquity()/3;

Previous_day=Day();

}

//+------------------------------------------------------------------+

//|                                                                  |

//+------------------------------------------------------------------+

int start()

  {

  //Short_Entry_pdr=Long_Entry_pdr;

  Short_stop_pdr=Long_stop_pdr;

   int cnt, ticket, total;

   

   if (Previous_day!=Day() && DayOfWeek()>0 && DayOfWeek()<6) 

   {

      yesterday_high= iHigh(NULL,PERIOD_H4,1);

      yesterday_low= iLow(NULL,PERIOD_H4,1);

      yesterday_close= iClose(NULL,PERIOD_H4,1);

      today_open= iOpen(NULL,PERIOD_H4,0);

      yesterday_range=(yesterday_high-yesterday_low);

      /*

      today_pivot= (yesterday_high+yesterday_low+yesterday_close)/3;

      today_S1= 2*today_pivot-yesterday_high;

      today_S2= 

      today_R1= 2*today_pivot-yesterday_high;

      today_R2=

      */

      today_buy= today_open-yesterday_range*(Long_Entry_pdr/22)-MarketInfo(Symbol(),MODE_SPREAD)*Point;

      today_sell= today_open-yesterday_range*(Short_Entry_pdr/22);

      TrailingStop=yesterday_range*(TrailingStop_pdr/100);

 

      today_buy=MathRound(today_buy/Point)*Point;

      today_sell=MathRound(today_sell/Point)*Point;

      

      today_long_SL= today_buy-yesterday_range*(Long_stop_pdr/100);

      today_short_SL= today_sell-yesterday_range*(Short_stop_pdr/100)-MarketInfo(Symbol(),MODE_SPREAD)*Point;

  

      Lots= 0.1*MathCeil( (Lots_Acc_Equity/100)/( ((today_buy-today_long_SL)/Point)/(AccountFreeMargin()-Acc_Start_Equity))  );

 

      if (Lots<0.1) Lots=0.1;

 

      Print("Day: ",Day()," Order_Total : ",OrdersTotal()," Lots : ",Lots);

      

      if (IsPositionOpen==true)   CheckOpenOrders();

      

      if (OrdersTotal()>0 && IsPositionOpen==false)

      {

         int totalorders = OrdersTotal();

         for(int j=totalorders-1;j>=0;j--)                                // scan all orders and positions...

            {

            

            

            OrderSelect(j, SELECT_BY_POS);


            if ( OrderSymbol()==Symbol() && ( (OrderMagicNumber() == uniqueMagic) || (OrderComment() == EAName)) )  

               {  

               int type = OrderType();

               if ( type > 1 ) bool result = OrderDelete( OrderTicket() );

               }

            } 

      }

      

      if (OrdersTotal()==0)

      {

         ticket=OrderSend(Symbol(),OP_BUYSTOP,Lots,today_buy,Slippage,today_long_SL,today_buy+Point*TakeProfit,EAName,uniqueMagic,0,Green);

         ticket=OrderSend(Symbol(),OP_SELLSTOP,Lots,today_sell,Slippage,today_short_SL,today_sell-Point*TakeProfit,EAName,uniqueMagic,0,Red);      

         IsPositionOpen=false;

      }

      

      Previous_day= Day();

   }

   else  {Previous_day= Day();}

   

   

   total = OrdersTotal();

   for(int i=total-1;i>=0;i--)

   {

    OrderSelect(i, SELECT_BY_POS);

    type    = OrderType();

    result = false;


    if ( OrderSymbol()==Symbol() && ( (OrderMagicNumber() == uniqueMagic) || (OrderComment() == EAName)) )  // only look if myEA and symbol...

     { 

     if(OrderType()==OP_BUY)

     {

         if(TrailingStopMode==true && TrailingStop > 0) 

         {                 

               if(Bid - OrderOpenPrice() > Point * TrailingStop) {

                  if(OrderStopLoss() < Bid - Point * TrailingStop) {

                     OrderModify(OrderTicket(), OrderOpenPrice(), Bid - Point * TrailingStop, OrderTakeProfit(), 0, MediumSeaGreen);

                     return(0);

                  }

               }

         }

      }

      if(OrderType()==OP_SELL)

      {

         if(TrailingStopMode==true && TrailingStop > 0) {                 

               if((OrderOpenPrice() - Ask) > (Point * TrailingStop)) {

                  if((OrderStopLoss() > (Ask + Point * TrailingStop)) || (OrderStopLoss() == 0)) {

                     OrderModify(OrderTicket(), OrderOpenPrice(), Ask + Point * TrailingStop, OrderTakeProfit(), 0, DarkOrange);

                     return(0);

                  }

               }

            }

      }

         if ( type == OP_BUY || type == OP_SELL && IsPositionOpen==false)  IsPositionOpen= true;

         if (IsPositionOpen==true && type>1) result = OrderDelete( OrderTicket() );

      }

   }



   return(0);

  }

// the end.

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