I"[(function() {
  $(function() {
    return $("[data-select-columns]").each(function() {
      return $(this).on('change', function() {
        var headers, options, table, table_selector;
        table_selector = $(this).data('select-columns-target');
        table = $(table_selector);
        headers = $(table_selector + " th");
        options = $(this).find("option");
        console.log(options);
        return options.each(function() {
          var column_index, th_id;
          th_id = $(this).attr('value');
          column_index = $(th_id).index(table_selector + " tbody tr:first th") + 1;
          console.log(column_index);
          if ($(this).is(':selected')) {
            $(table_selector + " th:nth-child(" + column_index + ")").show("slow");
            return $(table_selector + " td:nth-child(" + column_index + ")").show("slow");
          } else {
            $(table_selector + " th:nth-child(" + column_index + ")").hide("slow");
            return $(table_selector + " td:nth-child(" + column_index + ")").hide("slow");
          }
        });
      });
    });
  });

}).call(this);
:ET