// load the AJAX Feed API
google.load("feeds", "1");

function OnLoad() {

  // create a feed control
  var feedControl = new google.feeds.FeedControl();
  feedControl.setNumEntries(2);
  feedControl.addFeed("http://smb.smblogs.es/feed/", "");

  feedControl.draw(document.getElementById("feedControl"));
}

google.setOnLoadCallback(OnLoad);