$(function(){
    $('.hookslider img:gt(0)').hide();
    setInterval(function(){
      $('.hookslider :first-child').fadeOut()
         .next('img').fadeIn()
         .end().appendTo('.hookslider');}, 
      4000);
      
    $('.sliderdots img:gt(0)').hide();
    setInterval(function(){
      $('.sliderdots :first-child').fadeOut()
         .next('img').fadeIn()
         .end().appendTo('.sliderdots');}, 
      4000);
      
});