google.load("feeds", "1");
function initialize() {
  var feedurl = "http://weather.jp.msn.com/RSS.aspx?wealocations=wc:10208124&weadegreetype=C&culture=ja-JP";  
//  var feedurl = "http://weather.livedoor.com/forecast/rss/10/58.xml";
  var feed = new google.feeds.Feed(feedurl);
  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];
        htmlstr += entry.content;
        for (var j = 0; j < entry.categories.length; j++) {
          htmlstr += "[" + entry.categories[j] + "]";
        }
        htmlstr += "</p>";
      }

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

}
google.setOnLoadCallback(initialize);