var EDSN_THRESHOLD = 30;

var EdsnSwitch = (function(){
  var editing;
  var validBaseLoads = /^(base_load|base_load_edsn)$/;

  EdsnSwitch.prototype = {
    enable: function(){
      if(editing){
        swapEdsnBaseLoadSelectBoxes();
      }
    },

    isEdsn: function(){
      return validBaseLoads.test($(this).data('type'));
    },

    cloneAndAppendProfileSelect: function(){
      swapSelectBox.call(this);
    }
  };

  function swapEdsnBaseLoadSelectBoxes(){
    $("tr.base_load_edsn select.name").each(swapSelectBox);
  };

  function swapSelectBox(){
    var technology   = $(this).val();
    var self         = this;
    var unitSelector = $(this).parents("tr").find(".units input");
    var units        = parseInt(unitSelector.val());
    var actual       = (units > EDSN_THRESHOLD ? "base_load_edsn" : "base_load");
    var select       = $(".hidden select." + actual).clone(true, true);

    $(this).parent().next().html(select);
    $(this).find("option[value='" + technology + "']").attr('value', actual);

    unitSelector.off('change').on('change', swapSelectBox.bind(self));
  };

  function EdsnSwitch(_editing){
    editing = _editing;
  };

  return EdsnSwitch;
})();


@@ -314,19 +314,12 @@
 is).
-data('type'
+val(
 ));%0A

Revert "Use data attribute instead of val()"