google.load("feeds", "1");
function initialize() {
  var feed = new google.feeds.Feed("http://blog.livedoor.jp/idearblog/atom.xml");
  feed.setNumEntries(13)
  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 dd = new Date(entry.publishedDate); // now
var yearNum = dd.getYear();
if (yearNum < 2000) yearNum += 1900;
var m = dd.getMonth() + 1;
if (m < 10) {m = "0" + m;}
var d = dd.getDate();
if (d < 10) {d = "0" + d;}
var date = yearNum + "." + m + "." + d + " <br /><span class='color-a'>title::</span>";
container.innerHTML += "<p class='icon-list'>" + date +"<a href='" + entry.link + "' target='_blank' class='bloglink'>" + entry.title + "</a></p>";
      }
    }
  });
}
google.setOnLoadCallback(initialize);