var retryNum = 0;
var retryMaxNum = 10;
function init(){
	for(var i =0,len = days.length;i<len;i++){
		tabs.addDynamicTab(getDispDate(days[i]), callbackGenerator(days[i]));
	}
}
function callbackGenerator(day) {
	return function(tabId) {
		callbackTab(tabId, day);
	}
}
function callbackTab(tabId,day){
	retryNum ++;
	var feed_url = getURL(day);
	_gel(tabId).innerHTML = '<div class="feed">Loading...</div>';
	_IG_FetchFeedAsJSON(feed_url,function(feed) {
		var html ='';
		try{
		html = '<div class="feed"><span class="subtitle">'+getDispDate(day)+'の人気エントリ</span><ul>';
		for (var i = 0; i < feed.Entry.length; i++) {
			html += '<li><a target="_blank" href="'+feed.Entry[i].Link+'">'+feed.Entry[i].Title+'</a>'+createBookmarkNum(feed.Entry[i].Link,feed.Entry[i].Summary)+'</li>';
		}
		html = html + '</ul></div>';
		$(_gel(tabId)).html(html);
		_IG_AdjustIFrameHeight();
		retryNum = 0;
		}catch(e){
			if(retryNum <= retryMaxNum){
				callbackTab(tabId,day)
			}else{
				_gel(tabId).innerHTML = '<div class="feed">情報の取得に失敗しました。</div>';
				retryNum = 0;
			}
		}
	}, prefs.getInt("num_feed"),true);
	_IG_AdjustIFrameHeight();
}
function getURL(d){
	var m = d.getMonth() + 1;
	((''+m).length == 2)? m = ''+m:m = '0' + m;
	var da = d.getDate();
	((''+da).length == 2)?da=''+da:da='0'+da;
	var ds = (d.getFullYear())+ m + da;
	return 'http://pipes.yahoo.com/chrisryu/pasthatebu?date='+ds+'&_render=rss';
}
function getDispDate(d){
	return d.getFullYear() + '-' + (d.getMonth()+1) + '-' + d.getDate() + '';
}
function createBookmarkNum(link,desc){
	var num = parseInt($(desc).text().split('/')[0]) ;
	var img = '<img src="http://b.hatena.ne.jp/entry/image/' + link + '" onload="_IG_AdjustIFrameHeight();">';
	return ' <a class="bookmarknum" target="_blank" href="http://b.hatena.ne.jp/entry/'+link+'">'+num+' users</a>';
}
_IG_RegisterOnloadHandler(init);