if checkboc_checked  then
     add_id(primary_key)
  else /* this is when we are removing the checked record*/
      For i in 1..collection.count loop
           delete_id(primary_key);
      end loop;
  end if;

/*Procedure to add the checked records to the collection*/
PROCEDURE ADD_ID(p_id NUMBER) IS 
v_cur NUMBER;
BEGIN
	v_cur := REC_PENDING.count ; /*rec_pending is a collection of number*/	
	REC_PENDING(v_cur+1) := p_id;
END ADD_ID; 
/*Procedure to delete the unchecked records from the collection*/
PROCEDURE DELETE_ID(p_id NUMBER) IS 
v_cur NUMBER;
BEGIN
	FOR i in REC_PENDING.FIRST .. REC_PENDING.LAST LOOP
		IF REC_PENDING(i) = p_id THEN
	    rec_pending.delete(i);
	   END IF;
	END LOOP;
END DELETE_ID;