ping all sepponians

What is the US equivalent of a "Justice of the Peace" called. Someone 
who can for example, certify that a xerox copy of a birth certificate is 
a true copy of the original document, that a photo is a true likeness of 
the bearer etc.


-- 
"Oh don't give me none more of that Old Janx Spirit/ No, don't you give 
me none more of that Old Janx Spirit/ For my head will fly, my tongue 
will lie, my eyes will fry and I may die/ Won't you pour me one more of 
that sinful Old Janx Spirit"