reinitialise serial counter

Hi,

I have a table

create table test (id serial, name text);

after inserting values and doing delete from test if I try to insert
values again, the id starts from where it left off previously. How can I
get the serial counter to restart from 1 ? is it anything to do with
setval(). How to use the setval?

thanks,
Indraneel

/************************************************************************.
# Indraneel Majumdar                  ¡  E-mail: indraneel@123india.com  #
# Bioinformatics Unit (EMBNET node),  ¡  URL: http://scorpius.iwarp.com  #
# Centre for DNA Fingerprinting and Diagnostics,                         #
# Hyderabad, India - 500076                                              #
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