int LED = 8;              // Sets LED = 8 
int button = 7;           // Sets button = 7;
int buttonpress = 0;      // Sets status of button to 0 which is off   
int on = 1;               // If on = 0, LED is off. If on = 1 LED is on.     

void setup() 
{
    pinMode (LED, OUTPUT);       //Controls digital Pin 8 which controls LED  
    pinMode (button, INPUT);   //Controls digital Pin 7 which controls button 
}

void loop() 
 {

  buttonpress=digitalRead(button);    // Checks that button has been pressed

  if (buttonpress == HIGH)            
      {
        on = on + 1;
        if (on == 1)
          {  
          digitalWrite (LED, HIGH); //Turns on LED
          delay(200);
          }
        else
          {
            digitalWrite (LED, LOW); //Turns off LED
            delay(200);
            on = 0;
          }         
       } 
 }