14 March 2011 Documentation Notes – Koha Bug 5738, Enhancement, Display URI from 856u as an image There are two system preferences added for this enhancement: OPACDisplay856uAsImage and Display856uAsImage. These appear on the OPAC and Staff Client screens under the System Preferences. The preference can be set to one of four options: Both Details and Results pages Details page only Neither Details or Results pages Results page only In addition to this option being set, the corresponding XSLT option must be turned on. Also, the corresponding 856q field must have a valid mime image extension, or the generic indicator “img” entered in the field. As of the above date the UNIMARC xslt display files also require a “0” in the second indicator location of the 856u field for the links to be activated. This is not true for the MARC21 display files. When all of the requirements are met, an image file will be displayed instead of the standard link text. Clicking on the image will open it in the same way as clicking on the link text.