Turn LEDs On/Off via Remote Control

1    /* 
2    source: www.electroschematics.com
3    You'll need to  change the led pins and the codes 
4    accordingly to your configuration and  IR remote
5    */
6     
7    #include <IRremote.h>
8     
9    int RECV_PIN  = 12; // the pin where you connect the output pin of TSOP4838
10    int led1 =  8;
11    int led2 = 9;
12    int led3 = 10;
13    int led4 = 11;
14    int itsONled[]  = {0,0,0,0,0};
15    /* the initial state of LEDs is OFF (zero) 
16    the first  zero must remain zero but you can 
17    change the others to 1's if you want a  certain
18    led to light when the board is powered */
19    #define code1  33772  // code received from button A
20    #define code2  52972 // code received from  button B
21    #define code3  3494 // code received from button C
22    #define  code4  65160 // code received from button D     
23    IRrecv irrecv(RECV_PIN);
24     
25    decode_results results;
26     
27    void setup()
28    {
29      Serial.begin(9600);   // you can comment this line
30      irrecv.enableIRIn();  // Start the receiver
31      pinMode(led1, OUTPUT);
32      pinMode(led2, OUTPUT);
33      pinMode(led3,  OUTPUT);
34      pinMode(led4, OUTPUT);
35    }
36     
37    void loop() {
38      if (irrecv.decode(&results)) {
39        unsigned int value = results.value;
40        switch(value) {
41           case code1:
42             if(itsONled[1]  == 1) {        // if first led is on then
43                digitalWrite(led1,  LOW);   // turn it off when button is pressed
44                itsONled[1] = 0;           // and set its state as off
45             } else {                      //  else if first led is off
46                 digitalWrite(led1, HIGH); // turn it  on when the button is pressed
47                 itsONled[1] = 1;          // and  set its state as on
48             }
49              break; 
50           case  code2:
51             if(itsONled[2] == 1) {
52                digitalWrite(led2,  LOW);
53                itsONled[2] = 0;
54             } else {
55                 digitalWrite(led2,  HIGH);
56                 itsONled[2] = 1;
57             }
58              break;
59           case code3:
60             if(itsONled[3] == 1) {
61                digitalWrite(led3,  LOW);
62                itsONled[3] = 0;
63             } else {
64                 digitalWrite(led3,  HIGH);
65                 itsONled[3] = 1;
66             }
67              break;    
68                case code4:
69             if(itsONled[4] == 1) {
70                digitalWrite(led4,  LOW);
71                itsONled[4] = 0;
72             } else {
73                 digitalWrite(led4,  HIGH);
74                 itsONled[4] = 1;
75             }
76              break;      
77        }
78        Serial.println(value); // you can comment this line
79        irrecv.resume(); // Receive the next value
80      }
81    }