Need help with adding alert to Fisher_Yurk indi

[[Deleted]]

This is a good indi it just needs to have a alert and pop up when the bars on the indi go above 25 and below -25
any help would be appreciated.
thank You in advance.

#property  copyright "Copyright © 2005, Yura Prokofiev"
#property  link      "[e-mail]"

#property  indicator_separate_window
#property  indicator_buffers 3
#property  indicator_color1  Blue
#property  indicator_color2  Lime
#property  indicator_color3  Red
#property indicator_level1 -0.25
#property indicator_level2 0.25

extern int period=10;
extern int bars_count=1000;

double         ExtBuffer0[];
double         ExtBuffer1[];
double         ExtBuffer2[];


int init()
  {
   
   
   SetIndexStyle(0,DRAW_NONE);
   SetIndexStyle(1,DRAW_HISTOGRAM);
   SetIndexStyle(2,DRAW_HISTOGRAM);
   //IndicatorDigits(Digits+1);

   SetIndexBuffer(0,ExtBuffer0);
   SetIndexBuffer(1,ExtBuffer1);
   SetIndexBuffer(2,ExtBuffer2);

   IndicatorShortName("Fisher");
   SetIndexLabel(1,NULL);
   SetIndexLabel(2,NULL);

   return(0);
  }


int start()
  {
   //int     period=10;
   int    limit;
   int    counted_bars=IndicatorCounted();
   double prev,current,old;
   double Value=0,Value1=0,Value2=0,Fish=0,Fish1=0,Fish2=0;
   double price;
   double MinL=0;
   double MaxH=0;  
   

   if(counted_bars>0) counted_bars--;
   if(bars_count > Bars || bars_count==0) 
   {
      limit=Bars - period;
   }else{
      limit=bars_count-period;
   }


   for(int i=limit; i>=0; i--)
    {  MaxH = High[Highest(NULL,0,MODE_HIGH,period,i)];
       MinL = Low[Lowest(NULL,0,MODE_LOW,period,i)];
      price = (High[i]+Low[i])/2;
      Value = 0.33*2*((price-MinL)/(MaxH-MinL)-0.5) + 0.67*Value1;     
      Value=MathMin(MathMax(Value,-0.999),0.999); 
      ExtBuffer0[i]=0.5*MathLog((1+Value)/(1-Value))+0.5*Fish1;
      Value1=Value;
      Fish1=ExtBuffer0[i];
      
    }


   bool up=true;
   for(i=limit-2; i>=0; i--)
     {
      current=ExtBuffer0[i];
      prev=ExtBuffer0[i+1];
           
      if (((current<0)&&(prev>0))||(current<0))   up= false;    
      if (((current>0)&&(prev<0))||(current>0))   up= true;
      
      if(!up)
        {
         ExtBuffer2[i]=current;
         ExtBuffer1[i]=0.0;
        }
        
       else
         {
          ExtBuffer1[i]=current;
          ExtBuffer2[i]=0.0;
         }
     }

   return(0);
  }

[btailor]

Update For Loop as below.

for(i=limit-2; i>=0; i--)
     {
      current=ExtBuffer0[i];
      prev=ExtBuffer0[i+1];
           
      if (((current<0)&&(prev>0))||(current<0))   up= false;    
      if (((current>0)&&(prev<0))||(current>0))   up= true;
      
      if(!up)
        {
         Alert("Sell : " + current);
         ExtBuffer2[i]=current;
         ExtBuffer1[i]=0.0;
        }
        
       else
         {
          Alert("Buy : " + current);
          ExtBuffer1[i]=current;
          ExtBuffer2[i]=0.0;
         }
     }