(function () {
    var fader = $('.fader li'), 
        index = 0, 
        interval,        
        interval_function = function(){
								index = (index + 1) % fader.length;
								fader.eq(index).animate({
											opacity: 1
									}, 800,'swing',function () {
										index = (index + 1) % fader.length;
										fader.eq(index).css('z-index' , 10);
										index = (index - 2) % fader.length;
										fader.eq(index).removeAttr('style');
										index = (index + 1) % fader.length;
										fader.eq(index).css('z-index' , 9);
									}
                                );
                            };
    fader.eq(index).animate({
			opacity: 1
        }, 800,'swing'
    );
    interval = setInterval(interval_function, 4000);
}());