executing a function

Hi,
i doubt if this should 've gone to the novice group, but it's all sql

i have a function that returns a setof rows from a table testtab :
____________________________________________________________________________________
CREATE FUNCTION "public"."gettesttab" () RETURNS SETOF public.testtab AS'
select * from TestTab;
'LANGUAGE 'plpgsql' VOLATILE CALLED ON NULL INPUT SECURITY INVOKER;
____________________________________________________________________________________

"volatile" etc. was added by the EMS PostGreSql Manager.

i try to execute this function

but a call
"select * from gettesttab();"
or
"select gettesttab();"
return the error

ERROR: syntax error at or near "select"

the postmaster window also logs the erros:
ERROR: syntax error at or near "select"
WARNING: plpgsql: ERROR during compile of gettesttab near line 1

can simeone please help me out with this.

thanks in advance

regards
-pawan