Can an M1 Visa be converted to H 1 visa inwardly the US ?

Can an M1 visa be converted to H1 visa within the US?
If so, what is the procedure and how long does it take?
wat is the paper work required?
Answers:   
GO TO AN EMBASSY OR WRITE TO TO USA GOVT TO GET OFFICIAL DETAILS/ OR GO TO IMMIGRATION SITES AND ASK FOR ACCURATE DETAILS. HERE ARE SOME SITES. TO HELP INFO RE VISAS
http://usasearch.gov/search?v%3Aproject=...

http://www.usembassy.gov/

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