Indonesian President Susilo Bambang Yudhoyono (4th R) and Indonesian Vice President Boediono (3rd R) prepare to start the Eid al-Adha pray at the Istiqlal Mosque in Jakarta, Indonesia, Nov. 6, 2011. Muslims celebrate Eid al-Adha, also known as the Corban Festival which falls on the 10th day of the 12th month of the Islamic calendar, to mark the end of the hajj and commemorate Prophet Abraham's willingness to sacrifice his son Ismail on God's command. [Xinhua photo]