convert ms sql to my sql

[Peder Spile]

dont know much about my sql but why wont this work. ??

DECLARE fetch_status, id ,ordernum INT
set ordernum = 1
DECLARE Prs_Cursor Cursor FOR SELECT id FROM lawyers order by ordernum
Open prs_cursor
FETCH NEXT FROM Prs_Cursor INTO @id
WHILE FETCH_STATUS = 0 do
update lawyers set ordernum = @ordernum
set @ordernum = @ordernum + 1
FETCH NEXT FROM Prs_Cursor INTO @id
end
Close prs_cursor;