[Koha] To link a pdf file in /usr/share/opac/htdocs

Dear Friends, We would like to link PDF file in 856$u PDF Files copies in /usr/share/opac/htdocs Present practice is that give ip address along with pdf. e.g. http://10.26.1.82/report.pdf How can we give relative path in 856$u, i.e. without ip ? Regards, -- Vimal Kumar V. Technical Assistant Mahatma Gandhi University Library Kottayam, Kerala- 686 560 Web: http://www.vimalkumar.info Blog: http://linuxhalwa.blogspot.com http://kohageek.blogspot.in http://moovandan.blogspot.in --------------------------------------------------------------------------- "I forget what I was taught. I only remember what I have learnt" -Patrick White