The Janusz Korzack School opened Tuesday in Bangkok's notorious Klong Toey slum.  The school, named after a Polish-Jewish Holocaust hero, is located at Klong Toey's Mercy Centre, which also provides AIDS health care services and community support to the poorest people living in the slum.  The school currently has 17 pupils, including an autistic boy who possesses a genius with maps and Latin-termed wildlife words, a blind child that was born and raised in a municipal garbage dump and a handful of other children that have fallen behind in public education.  Korzack was a Holocaust-era orphanage director in Warsaw, Poland, remembered for accompanying his 200 children on their march to the Treblinka death camp.