Thai oarsmen row a royal barge on the Chao Phraya River in Bangkok November 5, 2007. The majestic royal barge procession, held to celebrate King Bhumibol Adulyadej's coming 80th birthday, swept along the river without him on Monday. King Bhumibol, the world's longest reigning monarch, has been in hospital since October 13 after suffering a blood clot in his brain and more than 1 million yellow-clad Thais have signed books wishing him a speedy recovery. REUTERS/Sukree Sukplang (THAILAND)

Thai Crown Prince Maha Vajiralongkorn sits on the Royal Barge during the Royal celebrations on the Chao Phraya River in Bangkok November 5,2007. REUTERS/Sukree Sukplang (THAILADN)

Thai Crown Prince Vajiralongkorn, left, offers saffron cloth to senior Buddhist monks during a Kathin Ceremony, where pieces of cloth are presented to be used as robes for Buddhist monks, as part of the ceremony marking Thailand's King Bhumibol Adulyadej's 80th birthday celebration Monday, Nov. 5, 2007, at the temple of Dawn in Bangkok, Thailand. King Bhumibol will turn 80 on Dec. 5, 2007. (AP Photo)