/*
 *  shuffle jQuery function
 *
 *  # shuffle an array
 *  var arr = ["a", "b", "c", "d", "e"];
 *  arr = $.shuffle(arr);
 *
 * # or
 * # shuffle an unordered list
 * $('ul').shuffle();
 */
(function($){
  $.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);