Redraidergirl: i am pretty sure in the bible it doesn't say "Thou shalt not have short hair, or date" yeah there are guidelines.... but nothing like "those who wear their shoulder bare shall be cursed"
I know this is an old thread, but this website will explain where the not cutting hair interpretation comes from. See verse 6 in 1 Corinthians 11.
http://www.bible-researcher.com/headcoverings.html
and the part about not wearing pants is commonly cited from this passage:
Deuteronomy 22:5 - The woman shall not wear that which pertaineth unto a man, neither shall a man put on a woman’s garment: for all that do so are abomination unto the Lord thy God.