[Koha] Help needed in KOHA interface

Hello all. I wanted to add a new search field in KOHA default search to find the records according to their biblionumber. I have seen that arguments can be passed to the details.pl to show record of a particular biblionumber through the browser query string. I just wanted to add a search box that accepts biblionumber and sends the user to the particular details page of respective biblionumber.....what file should I write them on??? Please Help.... -- Nitesh Rijal BE IT email: rijal.it@gmail.com url: http://niteshrijal.com.np facebook: http://facebook.com/openrijal twitter: http://twitter.com/openrijal +9779841458173