Former Serbian President and former Democratic Party leader Boris Tadic, left, congratulates to newly elected President Dragan Djilas during a party congress in Belgrade, Serbia, . Serbia's biggest opposition party, the pro-Western Democrats, have elected Belgrade's popular mayor Dragan Djilas as the new party leader. Tadic stepped down from the party helm after he and the party lost general elections earlier this year to the nationalists, former loyalists of Serbia's late strongman Slobodan Milosevic
{}