function get_feed(acat, anode) {
  var assTag = "?tag=kanjinokakiju-22";
  var feedurl = "";

  /* 出力先(amafeed)がなければ何もしない */
  if (document.getElementById("amafeed") != null){
  }else{
    return;
  }
  /* カテゴリとノードからベストセラーのRSSフィードを生成 */
  feedurl = "http://www.amazon.co.jp/rss/bestsellers/";
  feedurl += acat + "/" + anode + "";
  feedurl += assTag;

  var feed = new google.feeds.Feed(feedurl);
  feed.setNumEntries(25);
  feed.load(dispfeed);

  function dispfeed(result){
    if (!result.error){
      var container = document.getElementById("amafeed");
      var htmlstr = '';
      htmlstr += '<div align="center"><a href="' + result.feed.link + '" target="_blank">';
      htmlstr += '<h3>' + result.feed.title + '</h3></a></div>';

	htmlstr += '<table cellspacing="3" cellpadding="3" border="1" align="center" valign="top">';

      for (var i = 0; i < result.feed.entries.length; i++) {
        var entry = result.feed.entries[i];

        var mod_content ='';
        var cut_point = entry.content.indexOf('(ランキングは1時間ごとに更新されます',0);
        if (cut_point > 0) {
            mod_content = entry.content.substring(0,cut_point);
        } else {
            mod_content = entry.content;
        }

			while (0 < mod_content.indexOf('<a c',0)) {
				mod_content = mod_content.replace('<a c', '<a target="_blank" c');
			}
			while (0 < mod_content.indexOf('<a h',0)) {
				mod_content = mod_content.replace('<a h', '<a target="_blank" h');
			}

		htmlstr += '<tr><td align="center" valign="middle">' + (i+1) + '</td>';
		htmlstr += '<td align="left" valign="top">';
//        htmlstr += '<a href="' + entry.link.replace('<a ', '<a target="_blank"') + '">';
//        htmlstr += entry.title + '</a><br />';
        htmlstr += mod_content + '</td></tr>';

      }
      htmlstr += '</table><br clear="all" />';

      htmlstr += '<div>' + result.feed.description + '</div><hr />';

      container.innerHTML = htmlstr;

    }else{
       alert(result.error.code + ":" + result.error.message);
    }
  }
}