(function($) {

  $.fn.addLast = function (settings) {
    var version = '0.1';
    var config = {
    };

    config = $.extend({}, config, settings);

    return this.each(function() {
      jQuery(this).children(':last').addClass('last');
    });

  };

})(jQuery);


$(document).ready(function() {
  jQuery('[class~=add-last]').addLast();
});