diff --git a/script.js b/script.js
index 2858b7c..b093335 100644
--- a/script.js
+++ b/script.js
@@ -8,3 +8,77 @@
   When I click on the 'go' button
     the bottom light should turn green.
 */
+
+document.getElementById('stopButton').addEventListener('click',function(){
+
+
+  if (document.getElementById('goLight').style['background-color'] === 'green'){
+    document.getElementById('slowLight').style['background-color'] = 'yellow';
+    document.getElementById('goLight').style['background-color'] = '';
+    setTimeout (function(){
+      document.getElementById('slowLight').style['background-color'] = '';
+      document.getElementById('stopLight').style['background-color'] = 'red';
+    },5000);
+  }
+  else if (document.getElementById('stopLight').style['background-color'] === '') {
+    document.getElementById('stopLight').style['background-color'] = 'red';
+    document.getElementById('slowLight').style['background-color'] = '';
+    document.getElementById('goLight').style['background-color'] = '';
+
+  }
+  else {
+    document.getElementById('stopLight').style['background-color'] = '';
+  }
+});
+
+document.getElementById('stopButton').addEventListener('mouseover',function(){
+  console.log('Entered'+ document.getElementById('stopButton').textContent + 'button');
+});
+
+document.getElementById('stopButton').addEventListener('mouseleave',function(){
+  console.log('Leaving'+ document.getElementById('stopButton').textContent + 'button');
+});
+
+document.getElementById('slowButton').addEventListener('click',function(){
+  if (document.getElementById('slowLight').style['background-color'] === '') {
+    document.getElementById('slowLight').style['background-color'] = 'yellow';
+    document.getElementById('stopLight').style['background-color'] = '';
+    document.getElementById('goLight').style['background-color'] = '';
+  } else {
+    document.getElementById('slowLight').style['background-color'] = '';
+  }
+});
+
+document.getElementById('slowButton').addEventListener('mouseover',function(){
+  console.log('Entered'+ document.getElementById('slowButton').textContent + 'button');
+});
+
+document.getElementById('slowButton').addEventListener('mouseleave',function(){
+  console.log('Leaving'+ document.getElementById('slowButton').textContent + 'button');
+});
+
+
+document.getElementById('goButton').addEventListener('click',function(){
+  if (document.getElementById('goLight').style['background-color'] === '') {
+    document.getElementById('slowLight').style['background-color'] = '';
+    document.getElementById('stopLight').style['background-color'] = '';
+    document.getElementById('goLight').style['background-color'] = 'green';
+  } else {
+    document.getElementById('goLight').style['background-color'] = '';
+  }
+});
+
+document.getElementById('goButton').addEventListener('mouseover',function(){
+  console.log('Entered'+ document.getElementById('goButton').textContent + 'button');
+});
+
+document.getElementById('goButton').addEventListener('mouseleave',function(){
+  console.log('Leaving'+ document.getElementById('goButton').textContent + 'button');
+});
+
+var buttonElements = document.getElementsByClassName('button');
+for (var i = 0; i < buttonElements.length; i++) {
+  buttonElements[i].addEventListener('click',function(){
+    console.log(this.textContent);
+  });
+}