"Treatment of homosexuals within Islam:

According to a pamphlet produced by Al-Fatiha, there is a consensus among Islamic scholars that all humans are naturally heterosexual. Homosexuality is seen by scholars to be a sinful and perverted deviation from the norm. All Islamic schools of thought and jurisprudence consider gay acts to be unlawful. They differ in terms of penalty:

The Hanafite school (currently seen mainly in South and Eastern Asia) teaches that no physical punishment is warranted.

The Hanabalites, (widely followed in the Arab world) teach that severe punishment is warranted.

The Sha'fi school of thought (also seen in the Arab world) requires a minimum of 4 adult male witnesses before a person can be found guilty of a homosexual act. Al-Fatiha estimates that 4,000 homosexuals have been executed in Iran since their revolution in 1979. 10 public executions of homosexuals have been performed in Afghanistan by the Taliban army."

http://www.missionislam.com/knowledge/homosexuality.htm