http://localhost/shuku/readimg.php?id=16228&part=0
http://localhost/shuku/readimg.php?id=16228&part=1
http://localhost/shuku/readimg.php?id=16228&part=2
http://localhost/shuku/readimg.php?id=16228&part=3
http://localhost/shuku/readimg.php?id=16228&part=4
http://localhost/shuku/readimg.php?id=16228&part=5