var limit = 7 * 24 * 60 * 60 * 1000; //7日
google.load("feeds", "1");
function initialize() {
  var feedurl = "http://excelhome2.eshizuoka.jp/index.rdf";
  var feed = new google.feeds.Feed(feedurl);
  feed.setNumEntries(5);
  feed.load(dispfeed);

  function dispfeed(result){
    if (!result.error){
　　　var now  = (new Date()).getTime();
      var container = document.getElementById("feed");
      var htmlstr = "";
      htmlstr += "<ul>";
      for (var i = 0; i < result.feed.entries.length; i++) {
        var entry = result.feed.entries[i];
		var entdate = new Date(entry.publishedDate).getTime();
　      var newmark = '';
		if (now >= entdate && now <= (entdate + limit)) {
		    newmark = '<img src="images/new.gif" alt="new" />';
//「NEWマーク」のタグ
		}

        htmlstr += "<li>"
        var strdate = createDateString(entry.publishedDate);
        htmlstr += strdate + "　";
        htmlstr += '<a href="' + entry.link + '"target="_blank">' + entry.title + '</a>';
		htmlstr += " " + newmark + "";
        htmlstr += "</li>"
      }
      htmlstr += "</ul>";

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

function createDateString(publishedDate){
	var pdate = new Date(publishedDate);
	var pday = pdate.getDate();
		if(pday<10){pday="0"+pday;}
	var pmonth = pdate.getMonth() + 1;
		if(pmonth<10){pmonth="0"+pmonth;}
	var pyear = pdate.getFullYear();
	var phour = pdate.getHours();
	var pminute = pdate.getMinutes();
	var psecond = pdate.getSeconds();
	var strdate = pyear + "年" + pmonth + "月" + pday + "日";
	return strdate;
}

google.setOnLoadCallback(initialize);