$(function($) {
$('#holder').fadeIn('slow');
var counter = 1;
var interval = 3500;
var imageCount = $('#animationen img').length;
  function vis () {	 
	    $('#ani' + counter).fadeOut(1800);	   
	   if(counter <  imageCount){	   
	   counter++;
	   }else{
	   counter = 1;
	   }
	   
	    $('#ani' + counter).fadeIn(900);

    }; 

   vis();  
   
    setInterval(function () {
        vis(); 
    }, interval);    


});