Use jQuery promise() to create single callback after animate() on multiple itemsTöbb elem animálása utáni callback készítéséhez használj jQuery promise()-t

$('.listContainer .element').animate(
	{opacity:0},
	{
		duration:2000,
		complete: function(){
			// This would be called on each item
		}
	}
).promise().then(function() {
	// This will be called after all items faded
});

OR

var items = $('.listContainer .element');

items.animate(
	{opacity:0},
	{
		duration:2000,
		complete: function(){
			// This would be called on each item
		}
	}
);

items.promise(function() {
	// This will be called after all items faded
});

is identical.

Read more: http://net.tutsplus.com/tutorials/javascript-ajax/wrangle-async-tasks-with-jquery-promises/