Branko Blanusa, presidential candidate for Bosnia's Serb-majority entity, casts his ballot in the snap elections. The elections will decide on a replacement for firebrand leader Milorad Dodik, who was removed for defying Bosnia's international peace envoy. Blanusa, a relatively unknown electrical engineering professor, represents the main opposition -- the Serb Democratic Party (SDS) -- and has repeatedly levelled corruption allegations against Dodik and his party. IMAGES AND SOUNDBITES