I'm not Jewish, but one of FI's good friends is.  Her wedding is this sunday, and I'm debating what to wear.  The only floor length skirt I own is black, but I'm not sure if that is acceptable as far as etiquette is concerned...or if a knee length pink or red skirt is better.  Or if I really should just buy something (the groom is orthodox, bride is conservitive...if that helps.  :-) )