// Google AJAX Feed APIの読み込み

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

function initialize() {

	// 読み込むFeedのURL
	var feed = new google.feeds.Feed("http://a-works.weblogs.jp/book/atom_info.xml");
	// 読み込むFeed数
	feed.setNumEntries(4);
	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];
			// 記事タイトルの表示文字数制限
			var strTitle;
			if (entry.title.length > 20 ){
				strTitle = entry.title.substr(0, 17) + '...';
			} else {
				strTitle = entry.title;
			}

			//記事日付の表示形式
			var pdate = new Date(entry.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 strdate = pyear + "." + pmonth + "." + pday;

			//HTML生成
			htmlstr += '<li><a href="' + entry.link + '" target="_blank">'  + strdate + '　' + strTitle + '</a></li>';
		}

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

google.setOnLoadCallback(initialize);