推特订阅源手动刷新按钮

试图通过链接/按钮/任何东西来刷新我的twitter提要。由于某种原因，它不起作用，可能是因为我的.js文件中的函数排序错误，但我完全被难住了，需要一些专家建议！

测试页面位于此页面

.js文件：

function closeStuff(){
    jQuery('#tweet_container').fadeOut(1000,function(){$('#tweet_container').empty();});
    jQuery('#photosContainer div').delay(1000).fadeIn(1000);
    }
function refreshStuff(user)
{
    jQuery('#tweet_container').empty();
    loadTweets(user);
}

function loadTweets(user){
  // Declare variables to hold twitter API url and user name
  var twitter_api_url = 'http://search.twitter.com/search.json';
  // Enable caching
  $.ajaxSetup({ cache: true });
  // Send JSON request
  // The returned JSON object will have a property called "results" where we find
  // a list of the tweets matching our request query
  $.getJSON(
    twitter_api_url + '?callback=?&rpp=10&q=from:' + user,
    function(data) {
      $.each(data.results, function(i, tweet) {
        // Uncomment line below to show tweet data in Fire Bug console
        // Very helpful to find out what is available in the tweet objects
        //console.log(tweet);
        // Before we continue we check that we got data
        if(tweet.text !== undefined) {
          // Calculate how many hours ago was the tweet posted
          var date_tweet = new Date(tweet.created_at);
          var date_now   = new Date();
          var date_diff  = date_now - date_tweet;
          var hours      = Math.round(date_diff/(1000*60*60));
          // Build the html string for the current tweet
          var tweet_html = '<div class="tweet_text">';
          tweet_html    += '<a href="http://www.twitter.com/';
          tweet_html    += user + '/status/' + tweet.id_str + '" target="_blank">';
          tweet_html    += tweet.text + '<'/a><'/div>';
          tweet_html    += '<div class="tweet_hours">' + hours;
          tweet_html    += ' hours ago<'/div>';
          // Append html string to tweet_container div
          $('#tweet_container').hide().append(tweet_html).fadeIn(1000);
        }
      });
    }
  );
  $('#tweet_container').hide().append('<a href="#" class="refresh" onClick="refreshStuff(user);">Refresh</a>').delay(1000).fadeIn(1000);
  $('#tweet_container').hide().append('<a href="#" class="close" onClick="closeStuff();">Back</a>').delay(1000).fadeIn(1000);
}


function clickPhoto(id){

var user;
switch(id)
{
case 1: user='cantqwontq';break;
case 2: user='carnivalrag';break;
case 3: user='samdlc';break;
default: user='0';break;
}

//jQuery('#tweet_container').empty();
jQuery('#photosContainer div').fadeOut();

loadTweets(user);

}