NEW : Arab League names Jordanian diplomat as Syrian envoy , Petra reports . Comment: Syria rejects Arab League , pointing to `` hysteria affecting some Arab governments '' Government troops keep up bombardment of Homs , activists say .
NEW : Arab League names Jordanian diplomat as Syrian envoy , Petra reports . Opposition groups praise the Arab League call for support . Syria rejects Arab League , pointing to `` hysteria affecting some Arab governments '' Government troops keep up bombardment of Homs , activists say .