var dog1 = {name: 'ada', species: 'dog', personality: 'puppy', color: 'black'};
  var dog2 = {name: 'charley', species: 'dog', personality: 'lummox', color: 'brown'}; 

  alert('dog1.name: ' + dog1.name);
  alert('dog1["name"]: ' + dog1["name"]);

  var s="";
  for (var i in dog1)
     s += dog1[i] + "
"; alert("dog1: " + s);