Macd Support and Resistance

//+------------------------------------------------------------------+
//|                                  Macd Support and Resistance.mq4 |
//|                                        http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "Alksnis Gatis"
#property link      "2xpoint@gmail.com"

#property indicator_chart_window
#property indicator_buffers 4
#property indicator_color1 Violet
#property indicator_color2 Lime
#property indicator_color3 Red
#property indicator_color4 Blue
extern string x="macd option";
extern int FEMA    =8;
extern int SEMA    =24;
extern int SMA     =10;
extern string x2="timeframe- 0=current";
extern int PERIOD  =0;
extern string x3="variant -100  100";
extern int variant =-2;
//---- buffers
double g1[];
double g2[];
double g3[];
double g4[];
double val1;
double val2;
double val3;
double val4;
int i;
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+  
int init()
  {
//---- drawing settings
   SetIndexArrow(0, 158);
   SetIndexArrow(1, 158);
//----  
   SetIndexStyle(0, DRAW_SECTION, STYLE_SOLID, 2);
   SetIndexDrawBegin(0, i-1);
   SetIndexBuffer(0, g1);
   SetIndexLabel(0,"Resistance");
//----    
   SetIndexStyle(1,DRAW_SECTION,STYLE_SOLID,2);
   SetIndexDrawBegin(1,i-1);
   SetIndexBuffer(1, g2);
   SetIndexLabel(1,"Support");
   
   
   //---- drawing settings
   SetIndexArrow(2, 158);
   SetIndexArrow(3, 158);
//----  
   SetIndexStyle(2, DRAW_SECTION, STYLE_DOT, 2);
   SetIndexDrawBegin(2, i-1);
   SetIndexBuffer(2, g3);
   SetIndexLabel(2,"Resistance1");
//----    
   SetIndexStyle(3,DRAW_SECTION,STYLE_DOT,2);
   SetIndexDrawBegin(3,i-1);
   SetIndexBuffer(3, g4);
   SetIndexLabel(3,"Support1");
   
//---- 
   return(0);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
int start()
  { 
   i = Bars;
   while(i >= 0)
     { 
     //1  
       val1 =iMACD(NULL,PERIOD,FEMA,SEMA,SMA,PRICE_LOW,MODE_SIGNAL,i);

      
       if(val1 > 0) 
           g1[i] = Low[i];
       else
           g1[i] = g1[i+variant];
    //2
       val2  =iMACD(NULL,PERIOD,FEMA,SEMA,SMA,PRICE_HIGH,MODE_SIGNAL,i);
      
       if(val2 < 0) 
           g2[i] = High[i];
       else
           g2[i] = g2[i+variant];
    //3  
       val3 =iMACD(NULL,PERIOD,FEMA,SEMA,SMA,PRICE_LOW,MODE_MAIN,i);

       if(val3 > 0) 
           g3[i] = Low[i];
            else
           g3[i] = g3[i+variant+1];
    //2
       val4  =iMACD(NULL,PERIOD,FEMA,SEMA,SMA,PRICE_HIGH,MODE_MAIN,i);
      
       if(val4 < 0) 
           g4[i] = High[i];
           else
           g4[i] = g4[i+variant+1];
           
           
           
       i--;
    
     }   
   return(0);
  }
//+------------------------------------------------------------------+