anchor.diff:          else{
   
           }
  -
  +        // Disables fields not relevant to the search
           if (selectedSupportVehicles){
             $('.not-for-support-vehicles :input').attr("disabled", "disabled");
           }
  
positive.code:           return $(option).attr('class');
          });
  
          var selectedEquipment = ($.inArray("Equipment", classNames) !== -1)
  
          var selectedVehicles = ($.inArray("Vehicle", classNames) !== -1)
  
negative.code:         else
            $('.all-asset-only').hide();
  
          // Reset all disabled form fields so that it can correctly
          // determine which fields to disable
          if (!selectedRailCars){
            $('.not-for-railcars :input').removeAttr("disabled");
          }
  