google.load('feeds', '1');

function initialize() {
  var feed = new google.feeds.Feed("http://ipiblog.s2.coreblog.jp/?feed=rss2");

  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 label = '<a class="label" target="_blank" href="' + entry.link + '">'+ formatDate(entry.publishedDate) + ' [組込みBLOG] ' + entry.title.substr(0,20) + '</a>';
        container.innerHTML += '<p class="topic">'+ label  + entry.contentSnippet.substr(0,30) + '...</p>';
      }
    }
  });
}

function formatDate( dd ){
  var tmp   = new Date( dd );
  var year  = tmp.getFullYear();
  var month = tmp.getMonth()+1;
  var day   = tmp.getDate();
  if( month<10 ){ month = '0' + month; }
  if( day<10 ){ day = '0' + day; }
  return (year + '.' + month + '.' + day);
}

google.setOnLoadCallback(initialize);