// We're going to iterate through each of the posts in the RSS feed
  var items = rss.getElementsByTagName("item");
  
  for ( var i = 0; i < items.length; i++ ) {
  
      // Extract the title, description, and link from the rss feed <item> elements
      var title = elem.getElementsByTagName("title")[0].firstChild.nodeValue;
      var desc = elem.getElementsByTagName("description")[0].firstChild.nodeValue;
      var link = elem.getElementsByTagName("link")[0].firstChild.nodeValue;
  
  }