Passport Expiry and H1Visa Stamping

[ssakthi]

hi all,
i had an h1visa with company x which was valid from aug27-2003
to sep 04 - 2004.
July time frame i changed to another company y and got h1 transfer.
I got my approval notice for transfer. New approval notice period
is valid up to july 20 - 2007. my I-94 is valid until sep 2005.

My passport is going to expire in sep 4 - 2005.
i am planning to make a trip in december.
1)
if i want to get the stamping for the transfered h1 - will INS stamp
visa for visa validity period up to new approval notice validity
(july 20 - 2007) or will give the visa for only up to passport expiry (sep 4 - 2005) ?

2) if the visa stamping will be given only upto the passport expiry - do i
need to get visa stamped again when i get the passport renewed ?



Thanks
sakthi