Learning Plpgsql ??

Hi
Newbie to Plpgsql and Postgres.
I am porting dbs from Access97 to postgres, tables and data comes across
fine but the autonumber(sequences) do not
get updated, so I need to do this manually using > SELECT
setval(sequence_name,value);
OK , this is no problem, BUT, I have 90 tables in the db, and around 70
clients to port to postgres.
So a function to do this is needed.

The direction took so far is to create a  table, seq_table consisting of
 all the sequences information in the db as follows:

    sequence_name                    table_name            pk_column
-----------------------------------------------------------------
customer_number_seq                customer               c_number
purchase_job_number_seq         purchase                job_number
etc

Then a function that in psuedo code is something like this
for each row in seq_table
    get max(pk_column) from table_name
    set sequence_name to max
endfor

So my function is:

-- Function: update_seq()
CREATE or REPLACE FUNCTION update_seq() RETURNS text AS '
  DECLARE
     row RECORD;
     maxid INTEGER;

  BEGIN
     -- select sequence information [ sequence_name, table_name, pk_column]
    FOR row IN SELECT * FROM seq_table LOOP

       --  get the maxid for row.table_name on row.pkcolumn
       SELECT max(row.pk_column) INTO maxid FROM row.table_name;

       -- then set the sequence value
       SELECT setval(row.sequence_name,maxid);

    END LOOP;

    RETURN ''done'';
  END;
'  LANGUAGE 'plpgsql';

The function fails at the line select into line
SELECT max(row.pk_column) INTO maxid FROM row.table_name;
with the following error........something to do with the second var
row.table_name I think.

swimdb=# SELECT update_seq();
NOTICE:  Error occurred while executing PL/pgSQL function update_seq
NOTICE:  line 14 at select into variables
ERROR:  parser: parse error at or near "$2"

Any ideas would be gratefully accepted...
Also a direction on some more detailed PL/pgSQL documentation
Have looked a Postgres Interactive Docs..not so helpfull

Thanks
Jonathon