Armenian President Robert Kocharian has sent a congratulatory message to religious leader of Iran ayatollah Khamenei and President Mohammad Khatami on the occasion of the 25-th anniversary of the Islamic Revolution. As reported by IRNA agency, R. Kocharian said he was confident that the friendly relations between the two countries, that are based on rich traditions, will successfully and progressively develop in politics and economy, as well as in the field of culture.