text: 
  console.log("Welcome to Bulb ON/OFF tutorial!");
  
  var onButton = document.getElementById("buttonOn");
  var offButton = document.getElementById('buttonOff');
  
  function changeToBulbOff() {
  	var bulb = document.getElementById('bulbImage');
  	bulb.src = "./images/pic_bulboff.gif";
  	onButton.disabled = false;
  	offButton.disabled = true;
  }
  
  function changeToBulbOn() {
  	var bulb = document.getElementById('bulbImage');
  	bulb.src = "./images/pic_bulbon.gif";
  	onButton.disabled = true;
  	offButton.disabled = false;
  }
  
  
  
  // Method 1
  offButton.onclick = changeToBulbOff;
  onButton.onclick = changeToBulbOn;
  
  // // Method 2
  // offButton.addEventListener("click", changeToBulbOff);
  // onButton.addEventListener("click", changeToBulbOn);
  
  // // Method 3
  // offButton.onclick = function() {
  // 	var bulb = document.getElementById('bulbImage');
  // 	bulb.src = "./images/pic_bulboff.gif";
  // 	onButton.disabled = false;
  // 	offButton.disabled = true;
  // }
  
  // onButton.onclick = function() {
  // 	var bulb = document.getElementById('bulbImage');
  // 	bulb.src = "./images/pic_bulbon.gif";
  // 	onButton.disabled = true;
  // 	offButton.disabled = false;
  // }
  
  
  /*
  	Wrong Way of doing things
  
  	Wrong Method 1
  	offButton.onclick = changeToBulbOff();
  
  	Wrong Method 2
  	offButton.addEventListener("click", changeToBulbOff());
  */
  
  