[рони]

nick032,

$(document).ready(function(){
  $('.calc').click(function(e){
    e.preventDefault();
    var $this = $(this),
      parent = $this.parent(),
      loader = $this.next();

    $this.fadeOut(300, function(){
      loader.fadeIn(f)
    })
    function f()
    {
    loader.fadeOut(300, function() {
      $this.fadeIn();
    });
    }

  });
});