Variables depending on enum selection

Hello,

I need help with my item database.

Here is just an example code (in javascript):

  public var Items : ItemData[];

  public class ItemData

  {

      public var itemType : ItemType;

        public enum ItemType {

          Weapon,

          Armor,

          Consumable

      }

     //for weapon

      public var damage : int;

     //for armor

      public var armor : int;

     //for consumable

      public var health_restored : int;

  }

So i would like to show only variables of the selected item type. For example if i have Weapon enum selected, it only shows damage in inspector.

i have found one solution http://answers.unity3d.com/questions/417837/change-inspector-variables-depending-on-enum.html

But how does it work with class (multiple items) and in javascript?

thanks!