anchor.diff:      function calcRoute() {
         var start = document.getElementById('from').value;
         var end = document.getElementById('to').value;
  +
         var request = {
           origin: start,
           destination: end,
  
positive.code:       calcRoute();
      });
      
  
        
negative.code:           // avoid waypoints, we only have a single leg in the journey
            steps = response.routes[0].legs[0].steps;
            if (steps) {
              distance = 0;
              for (var i = 0; i < steps.length; i++) {
                for (var j = 0; j < steps[i].path.length; j++) {
                  console.log(steps[i].path[j]);
                }
              }
            }          
          }
  