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 'minder dan een minuut geleden';
    } else if(delta < 120) {
      return 'ongeveer een minuut geleden';
    } else if(delta < (45*60)) {
      return (parseInt(delta / 60)).toString() + ' minuten geleden';
    } else if(delta < (90*60)) {
      return 'ongeveer een uur geleden';
    } else if(delta < (24*60*60)) {
      return 'about ' + (parseInt(delta / 3600)).toString() + ' uren geleden';
    } else if(delta < (48*60*60)) {
      return '1 dag geleden';
    } else {
      return (parseInt(delta / 86400)).toString() + ' dagen geleden';
    }
  }
  
	function twitterCallback(obj) {
		$(document).ready(function() {
			doTwitter(obj);
		});
	}
	
	function doTwitter(obj) {
		var messageNr;
		for (messageNr = 1; messageNr <= obj.length; messageNr++) {
			showMessage(messageNr, obj[messageNr - 1].id, obj[messageNr - 1].text, obj[messageNr - 1].created_at);
		}
		$('#twitter').vTicker({
		   speed: 500,
		   pause: 3000,
		   showItems: 1,
		   animation: 'fade',
		   mousePause: true,
		   height: 18,
		   direction: 'up'
		});	
	}
	
	function showMessage(id, messageId, text, createdAt) {
		if (text.length > 90) text = text.substring(0,86) + '...';
		document.getElementById('my_twitter_status_' + id).innerHTML = text.makeLinks();
		document.getElementById('my_twitter_status_time_' + id).innerHTML = '<a href="http://twitter.com/050makelaar/status/' + messageId + '">' + relative_time(createdAt) + '</a>';
		document.getElementById('twitterfeeds').style.display = 'block';
	}
	
	//Changes urls within the tweet into links.
    String.prototype.makeLinks = function() {
        return this.replace(/[A-Za-z]+:\/\/[A-Za-z0-9-_]+\.[A-Za-z0-9-_:%&\?\/.=]+/, function(str) {
        return str.link(str);
        });
    };