text: var source = new EventSource("/update");
      source.onmessage = function(event) {   
          odometer.innerHTML = event.data;
          
  };
  
  var source = new EventSource("/tweets");
      source.onmessage = function(event) {
          num_tweets.innerHTML = event.data;
          
  };
  
  var source = new EventSource("/likes");
      source.onmessage = function(event) {
          num_likes.innerHTML = event.data;
          
  };