Calling an HTML function from PL/SQL stsement

The pl/sql statement below is in attempt to raise an alert window whenever a new record is added to the database by an automatic page refresh.
Pls help me edit the statement below to call a HTML function named attention()from within the pl/sql statement or better still review the stuff to achieve the objective.
declare
v_count number;
attention varchar2(100);
begin
select count(move_id)
into v_count
from move
where move_status = 'Approved';
if v_count > :f100_move_count then
attention();
end if;
end;
Thanks gents
Sirdeeq

Sorry, the function is Javascript not HTML

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