google.load("feeds", "1");
function initialize() {
 var feed = new google.feeds.Feed("http://feeds.japan.cnet.com/rss/cnet/all.rdf");
 feed.setNumEntries(10)
 feed.load(function(result) {
     if (!result.error) {
      var container = document.getElementById("feed");
      for (var i = 0; i < result.feed.entries.length; i++) {
          var entry = result.feed.entries[i];
          var li = document.createElement("li");
          var a = document.createElement("a");     //a要素を付け足す
          a.href = entry.link;
          var titlelink = entry.title;     //titlelinkは勝手につけた変数名です
          a.appendChild(document.createTextNode(titlelink));
          li.appendChild(a);          //appendChildを使ってliに子要素を付け足す
          container.appendChild(li);
          }
      }
 });
}
google.setOnLoadCallback(initialize);