Hi. I'm trying to do a sequentiall animation with a loop....but i can't accomplish it in a smooth way (some "lag" problems).

jQuery

var i = 0;
var b = 0;

 var fades = function(){$(".caja").stop(0).each(function(){
$(this).delay(i * 500).fadeIn('slow', function(){
  $(this).delay(5000).fadeOut('slow', function(){
      $(".cajar").delay(1000).each(function(){
        $(this).delay(b * 500).fadeIn('slow', function(){
            $(this).delay(5000).fadeOut('slow', fades());
            });
          b++;
      });
    });
  });
i++;
})}


fades();

CSS

.caja{
width: 150px;
height: 150px;
background-color: black;
float: left;
margin: 0 10px 0 0;
display: none;
}

.cajar{
width: 150px;
height: 150px;
background-color: red;
float: left;
margin: 0 10px 0 0;
display: none;
}

.cajav{
width: 150px;
height: 150px;
background-color: green;
float: left;
margin: 0 10px 0 0;
display: none;
}

HTML

<div class="caja"></div>
<div class="caja"></div>
<div class="caja"></div>

<div class="cleaner"></div>

<div class="cajar"></div>
<div class="cajar"></div>
<div class="cajar"></div>

Thanks!