function Server=image_server          
% Get SDSS image server URL
% Package: VO.SDSS
% Description: Get the SDSS image server URL
% Input  : null
% Output : SDSS image server URL
% Example: VO.SDSS.image_server
% Reilable: 2
            
Server = 'http://data.sdss3.org/sas/dr9/boss/photoObj/frames/';
