Function: retrieve

CALL:

db = retrieve(dbname, HWIN) db = retrieve(dbname) db = retrieve

DESCRIPTION:

Retrieve undoredo object using specified name "dbname"

INPUT:

   HWIN:   handle
   dbname: database name. Typically "db" or "opt"

EXAMPLES any
db=undoredo(initdb,'dbname',db)
....
db=retrieve('db')