function twitterCallback2(twitters) {
  var statusHTML = [];
  var i=0;
  var output_count=0;
  while ((output_count < 1) && (i < twitters.length)) {
    var username = twitters[i].user.screen_name;
    var status = twitters[i].text.replace(/((https?|s?ftp|ssh)\:\/\/[^"\s\<\>]*[^.,;'">\:\s\<\>\)\]\!])/g, function(url) {
      return '<a href="'+url+'">'+url+'</a>';
    }).replace(/\B@([_a-z0-9]+)/ig, function(reply) {
      return reply.charAt(0)+'<a href="http://twitter.com/'+reply.substring(1)+'">'+reply.substring(1)+'</a>';
    });

    tl_check = status.match(/^@/);
    if (!tl_check) {
      statusHTML.push('<span>'+status+'</span> <a style="font-size:85%" href="http://twitter.com/'+username+'">'+relative_time(twitters[i].created_at)+'</a>');
      output_count++;
     }
     i++;
  }
  document.getElementById('twitter_update_list').innerHTML = statusHTML.join('');
}

function relative_time(time_value) {
  var values = time_value.split(" ");
  time_value = values[1] + " " + values[2] + ", " + values[5] + " " + values[3];
  var parsed_date = Date.parse(time_value);
  var relative_to = (arguments.length > 1) ? arguments[1] : new Date();
  var delta = parseInt((relative_to.getTime() - parsed_date) / 1000);
  delta = delta + (relative_to.getTimezoneOffset() * 60);

  if (delta < 60) {
    return '1分以内';
  } else if(delta < (60*60)) {
    return (parseInt(delta / 60)).toString() + '分前';
  } else if(delta < (24*60*60)) {
    return (parseInt(delta / 3600)).toString() + '時間前';
  } else {
    return (parseInt(delta / 86400)).toString() + '日前';
  }
}