extern bool Alert.=true;
extern int Count=2;
extern int Range=20;

int fontsize=10;
double YL,YH;
int LastTime1 = 1;
int LastTime2 = 1;
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {

ObjectDelete("YLowLb");
ObjectDelete("YLowLn");
ObjectDelete("YHighLb");
ObjectDelete("YHighLn");

   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
   return(0);
  }

//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()

  {
   int    counted_bars=IndicatorCounted();
//---- exit if period is greater than H1 charts
if(Period() > 60)
{
Print("Error - Chart period is greater than H1 Chart.");
return(-1); // then exit
}

   int limit, i;
//---- indicator calculation
   if(counted_bars<0) return(-1);
//---- last counted bar will be recounted
//   if(counted_bars>0) counted_bars--;
   limit=(Bars-counted_bars)-1;
   limit = Bars-1;
   
       int dshift= iBarShift(NULL,PERIOD_D1,Time[i]);
       YL= iLow(NULL,PERIOD_D1,dshift+1);
       YH= iHigh(NULL,PERIOD_D1,dshift+1); 



 //----- Lines
if(ObjectFind("YLowLn") != 0)
      {
      ObjectCreate("YLowLn", OBJ_HLINE, 0, 0, 0);
      ObjectSet("YLowLn", OBJPROP_PRICE1, YL);
      ObjectSet("YLowLn", OBJPROP_STYLE, STYLE_SOLID);
      ObjectSet("YLowLn", OBJPROP_COLOR, White);
      ObjectCreate("YLowLb", OBJ_TEXT, 0, Time[7], 0);
      ObjectSet("YLowLb", OBJPROP_PRICE1, YL);
      ObjectSetText("YLowLb", "Yesterday Low", 12, "Arial", White);
      
      ObjectCreate("YHighLn", OBJ_HLINE, 0, Time[7], 0);
      ObjectSet("YHighLn", OBJPROP_PRICE1, YH);
      ObjectSet("YHighLn", OBJPROP_STYLE, STYLE_SOLID);
      ObjectSet("YHighLn", OBJPROP_COLOR, White);      
      ObjectCreate("YHighLb", OBJ_TEXT, 0, Time[7], 0);
      ObjectSet("YHighLb", OBJPROP_PRICE1, YH);
      ObjectSetText("YHighLb", "Yesterday High", 12, "Arial", White);      
      }
      else
      {
      ObjectMove("YLowLn", 0, Time[7], YL);
      ObjectMove("YHighLn", 0, Time[7], YH);
      } 
      
      if(Alert.==true)
      {
      double val1 =  ObjectGet( "YLowLn", OBJPROP_PRICE1);
      if (Bid-Range*Point <= val1 && Bid+Range*Point >= val1 && LastTime1 < (Count+1)) 
      {Alert (Symbol()," ",Period()," Yesterday Low ",Bid);}LastTime1++;
      
      double val2 =  ObjectGet( "YHighLn", OBJPROP_PRICE1);
      if (Bid-Range*Point <= val2 && Bid+Range*Point >= val2 && LastTime2 < (Count+1)) 
      {Alert (Symbol()," ",Period()," Yesterday High ",Bid);}LastTime2++;
      }
      
   
  
   return(0);
  }