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 'less than a minute ago';
  } else if(delta < 120) {
    return 'about a minute ago';
  } else if(delta < (60*60)) {
    return (parseInt(delta / 60)).toString() + ' minutes ago';
  } else if(delta < (120*60)) {
    return 'about an hour ago';
  } else if(delta < (24*60*60)) {
    return 'about ' + (parseInt(delta / 3600)).toString() + ' hours ago';
  } else if(delta < (48*60*60)) {
    return '1 day ago';
  } else {
    return (parseInt(delta / 86400)).toString() + ' days ago';
  }
}

String.prototype.linkify = function() {
  return this.replace(/[A-Za-z]+:\/\/[A-Za-z0-9-_]+\.[A-Za-z0-9-_:%&\?\/.=]+/, function(m) {
      return m.link(m);
      }).replace(/\B@([_a-z0-9]+)/ig, function(reply) {
        return  reply.charAt(0)+'<a href="http://twitter.com/'+reply.substring(1)+'">'+reply.substring(1)+'</a>';
        }); 
}; 

var url = "http://twitter.com/status/user_timeline/GamesRadar.json?count=3&callback=?"; 
$(document).ready(function() {
    $.getJSON(url, 
        function(data){ 
        $.each(data, function(i, item) { 
              $("#twitter_update_list").append("<li><span>"  
                + item.text.linkify() + "</span>"
                + '<a href="http://twitter.com/'+item.user["screen_name"]+'/statuses/'+item.id+'">'
                + relative_time(item.created_at)  
                + "</a></li>"); 
            }); 
        }); 
});