Ticker Notify when someone Typ you in Facebook Chat

fbtypalert.js

var jq = document.createElement('script');
jq.src = '//ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js';
document.body.appendChild(jq);

var jqI = setInterval(function()
{
	if (!jQuery in window) return;
	clearInterval(jqI);
	jQuery.noConflict();
	window.$J = jQuery;
	
	FBAlertTyp.init();
	
}, 500);

FBAlertTyp = new function()
{
	var self = this;
	self.typListener = null;
	
	self.getUInfo = function(id, cb)
	{
		$J.getJSON("//graph.facebook.com/"+id, cb);
	};
	
	self.buildTickerStory = function(id, name)
	{
		var now = new Date().getTime();
		var h = '';
		h += '<div class="fbFeedTickerStory tickerStoryClickable fbAlertTyp_'+id+'" data-ticker-timestamp="'+now+'">';
		h += '<div class="clearfix mls tickerStoryBlock">';
		h += '<img class="tickerStoryImage  _29h  _29i _rx img" src="//graph.facebook.com/'+id+'/picture">';
		h += '<div class="tickerStoryContent _29k"><span><div class="tickerFeedMessage">';
		h += '<h5 class="uiStreamMessage uiStreamHeadline uiStreamPassive">';
		h += '<span class="passiveName">'+name+'</span>';
		h += '<span> ti sta scrivendo in chat.</span>';
		h += '</h5>';
		h += '</div></span></div>';
		h += '</div>';
		h += '</div>';
		return h;
	};
	
	self.init = function()
	{
		var listeners = ArbiterMixin._getArbiterInstance()._getInstance()._listeners;
		$J.each(listeners, function()
		{
			if ( !this.types || !this.types.length ) return;
			if ( this.types[0]=='channel/message:typ' )
			{
				self.typListener = this;
				return;
			}
		});
		
		self.typListener.oldCallback = self.typListener.callback;
		self.typListener.callback = function(x, y)
		{
			
			self.typListener.oldCallback(x, y);
			
			if (!y.obj.type) return;
			if (y.obj.type!="typ") return;
	
			var fromUID = y.obj.from;
			Chat.openTab(fromUID);
			
			self.getUInfo(fromUID, function(user)
			{
				var h = self.buildTickerStory(fromUID, user.name);
				$J('.tickerActivityStories').html( h + $J('.tickerActivityStories').html() );
				$J('fbAlertTyp_'+fromUID).bind('click', function()
				{
					if ( $J(this).data('binded') ) return;
					$J(this).data('binded', true);
				});
				
			});
		};
	};
};