Solution to problem 1

sample.html

<script type="text/javascript">
  google.load("feeds", "1");
  google.setOnLoadCallback(initialize);

  function initialize() {
    var feed = new google.feeds.Feed("http://feeds.feedburner.com/tumblr/EJwT");
    feed.setNumEntries(8);
    feed.setResultFormat(google.feeds.Feed.JSON_FORMAT);
    feed.load(function(result) {
      if (!result.error) {
        var container = document.getElementById("blogfeed");
        for (var i = 0; i < result.feed.entries.length; i++) {
          var entry = result.feed.entries[i];
          var div = document.createElement("div");
          div.id = i + 1; // Make the parent div have a unique ID, starting from 1
          div.innerHTML = '<h3><a href="' + entry.link + '">' + entry.title + '</a> <cite>by ' + entry.author + '</cite></h3>';
          div.innerHTML += '<p>' + entry.contentSnippet + '</p>';
          container.appendChild(div);
        }
      }
    });
  }
</script>