[otrs] re-open a closed ticket from customer web-interface

Hi all, (otrs-3.0-beta7) Is it possible to change state from 'closed successfully' to, say, 'open' for a customer, if he/she using web-interface (customer.pl) ? All that I found in google says about agent interface (index.pl) or mail interface (PostmasterFollowUpState). Please help =) -- Serge A. Ribalchenko