ZAGREB, Jan 20 (Hina) - Social Democratic Party head Zoran Milanovic called for talks the heads of the Opposition's People's Party, the Istrian Democrats and the Peasant Party as well as the Independent Democratic Serbian Party, which is a member of the ruling coalition. The talks focused on the economic situation and amendments to the Constitution. He also thanked them for supporting Ivo Josipovic in the presidential runoff.