>Thanks, but the problem is that the undo button doesn't appears, so that's why i can't double-click it and place my code, thanks for your patience.
Where DOES the undo button appear? Or do you want to add one?
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)