$.fn.extend({
	random: function(count){
		this.addClass('temporary_random');
		while((random_set = $('.temporary_random')).length > count){
			$(random_set[Math.floor(Math.random() * random_set.length)]).removeClass('temporary_random');
		}
		random_set.removeClass('temporary_random');
		return random_set;
	},
	shuffle: function(){
		var count = (this.length * 2);
		for(i = 0; i < count; i++){
			element = $(this[Math.floor(Math.random() * this.length)]);
			element.parent().append(element);
		}
		return this;
	}
});