/*	—————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————
	
	>	TWITTER.JS 
		(c) 2010 plainworks [Alexander Glante]


		PLAINWORKS
		COMMUNICATION DESIGN
	
		WWW.PLNWRX.COM
		INFO@PLNWRX.COM


	—————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————			 */

	function initTwitter(){
		if (document.getElementById("twitterscript")){
			//alert("lalala");
			document.getElementById("twitter_update_list").innerHTML='<br /><img alt="" src="img/spinner.gif" width="16" height="16" /><br />';
			script=document.getElementById("twitterscript");
			script.parentNode.removeChild(script);
			
			var head=document.getElementsByTagName('head')[0];
			script=document.createElement('script');
			script.id="twitterscript";
			script.type='text/javascript';
			script.src="http://twitter.com/statuses/user_timeline/plainworks.json?callback=twitterCallback2&count=6";
			head.appendChild(script);
			
		}
		else{
			var head=document.getElementsByTagName('head')[0];
			script=document.createElement('script');
			script.id="twitterscript";
			script.type='text/javascript';
			script.src="http://twitter.com/statuses/user_timeline/plainworks.json?callback=twitterCallback2&count=6";
			head.appendChild(script);
		}
	}
	
	function twitterCallback2(twitters) {
	  var statusHTML = [];
	  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 class="twitter-txt" target="_blank" href="'+url+'">'+url+'</a>';
		}).replace(/\B@([_a-z0-9]+)/ig, function(reply) {
		  return  reply.charAt(0)+'<a class="twitter-txt" target="_blank" href="http://twitter.com/'+reply.substring(1)+'">'+reply.substring(1)+'</a>';
		});
		statusHTML.push('<span class="twitter-date">'+relative_time(twitters[i].created_at)+'</span><span class="twitter-txt">'+status+'</span><br />');
		//statusHTML.push('<li><span>'+status+'</span> <a style="font-size:85%" href="http://twitter.com/'+username+'/statuses/'+twitters[i].id+'">'+relative_time(twitters[i].created_at)+'</a></li>');
	  }
	  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 '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';
	  }
	}