job scheduler

 Dear Seniors

I need to schedule the following job
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declare
a varchar2(10);
begin
dbms_job.submit(:x,'post_phr_transactions.process_phr_posting;',trunc(sysdate)+11/24,'add_months(trunc(sysdate),1)+11/24');
end;
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Please help me how to schedule this job in oracle 10g on solaris 10

With Kind Regards
Kamal