var imgs = document.getElementsByTagName('img');
for(var i = 0; i< imgs.length; i++){
  imgs[i].onerror = function(){ this.style.display = 'none'; }
}

var hdr = document.getElementById('header');
hdr.style.position = 'relative';
hdr.innerHTML += '<div style="position: absolute;" id="lasttweet"></div>';

function updatelasttweet(twitters){
  var statusHTML = []; var i = 0;
  //for (var i=0; i<twitters.length; i++){
    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>';
    }).replace(/\B#([_a-z0-9]+)/ig, function(topic) {
      return  '<a href="http://twitter.com/search?q='+escape(topic)+'">'+topic+'</a>';
    });
    statusHTML.push('<span>'+status+'</span> <a style="font-size:85%" href="http://twitter.com/'+username+'/statuses/'+twitters[i].id+'">'+relative_time(twitters[i].created_at)+'</a>');
  //}
  var lt = document.getElementById('lasttweet');
  lt.innerHTML = statusHTML.join('') + '<a style="cursor:pointer;width:85px;height:85px;position:absolute;top:0;left:0;text-decoration:none;display:block" target="_blank" href="http://twitter.com/davidgosse">&nbsp;</a>';
  var oh = lt.parentNode.offsetHeight - lt.offsetHeight;
  lt.style.top = (oh / 2) + 'px'; 
}

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';
  }
}

var head = document.getElementsByTagName('head')[0];
var script = document.createElement('script');
script.type='text/javascript';
script.src = 'http://twitter.com/statuses/user_timeline/davidgosse.json?callback=updatelasttweet&count=2';
head.appendChild(script);
script = document.createElement('link');
script.type = 'text/css';
script.href = '/wp-content/themes/thesis_16/last-tweet.css';
script.rel = 'stylesheet';
head.appendChild(script);