Journalists and residents take photographs of the Olympic countdown clock as it changes to 500 days to the Olympic Games in Beijing, capital of China, March 26, 2007. A series of events are happening in Beijing to mark the 500-day countdown to the Beijing Olympic Games. (Xinhua Photo/Luo Xiaoguang)

Four students pose for a photo in front of the Olympic countdown clock displaying 500 days to the Olympic Games in Beijing, capital of China, March 26, 2007. A series of events are happening in Beijing to mark the 500-day countdown to the Beijing Olympic Games. (Xinhua Photo/Luo Xiaoguang(Xinhua Photo)

A foreign tourist poses for a photo in front of the Olympic countdown clock displaying 500 days to the Olympic Games in Beijing, capital of China, March 26, 2007. A series of events are happening in Beijing to mark the 500-day countdown to the Beijing Olympic Games. (Xinhua Photo/Luo Xiaoguang)

Editor: Donald