LJUBLJANA/REYKJAVIK (AFP) - Former Slovenian prime minister Janez Jansa and four others went on trial on Monday over alleged bribery in the former Yugoslav republic's biggest ever defence deal. "All together it is just a farce," Jansa, prime minister from 2004-8 and now head of the main centre-right opposition Slovenian Democratic Party (SDS), told journalists as he arrived at Ljubljana's municipal court. Meanwhile, Iceland's former prime minister became Monday the first political leader to be tried over the global financial crisis as proceedings began to decide if he can be held accountable for his country's banking sector collapse.