(function($){
  $.fn.shuffle = function() {
    return this.each(function(){
      var items = $(this).children();
      return (items.length) ? $(this).html($.shuffle(items)) : this;
    });
  }
 
  $.shuffle = function(arr) {
    for(var j, x, i = arr.length; i; j = parseInt(Math.random() * i), x = arr[--i], arr[i] = arr[j], arr[j] = x);
    return arr;
  }
})(jQuery);