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

function initialize() {
  var feedurl = "http://www.tapa.jp/feed/";
  var feed = new google.feeds.Feed(feedurl);
  feed.setNumEntries(10);//件
  feed.load(dispfeed);

  function dispfeed(result){
    if (!result.error){
      var container = document.getElementById("feed");
      var htmlstr = "";
      for (var i = 0; i < result.feed.entries.length; i++) {
        var entry = result.feed.entries[i];
        var date = new Date(entry.publishedDate);
	var formated_date = date.format();
        htmlstr += '<dl class="list">';
        htmlstr += "<dt>" + formated_date + "</dt>";
        htmlstr += '<dd><a href="' + entry.link + '">' + entry.title + '</a></dd>';
        htmlstr += '</dl>';
      }

       container.innerHTML = htmlstr;
    }else{
       alert(result.error.code + ":" + result.error.message);
    }
  }

}
google.setOnLoadCallback(initialize);


// 日付変換
Date.prototype.format = function() {
    year   = this.getYear();
    month  = this.getMonth() + 1;
    day    = this.getDate();
    hour   = this.getHours();
    minute = this.getMinutes();
    if (year < 2000) { year  += 1900; }
    if (month  < 10) { month  = '0'+month; }
    if (day    < 10) { day    = '0'+day; }
    if (hour   < 10) { hour   = '0'+hour; }
    if (minute < 10) { minute = '0'+minute; }
    return String(year)+'/'+month+'/'+day;
};