function swapImages(){
      var $active = $('.headerGallery .active');
      var $next = ($('.headerGallery .active').next().length > 0) ? $('.headerGallery .active').next() : $('.headerGallery img:first');
      $active.fadeOut(function(){
	      $active.removeClass('active');
 	      $next.fadeIn().addClass('active');
      });
}