>You are right, but I always (from several years) create the index w/o "OF"
Sorry. I must have misunderstood your original message: I thought you still used the "OF" clause.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)