Of course, if/when the larger problem is fixed, having applied this patch may prevent the real fix from applying on your system, FYI.  I can see how this would be annoying, but those libraries who think this is a "serious concern" probably haven't seen an actual serious problem in a while.  To keep things in perspective: that would be data corruption, system instability, fatal error, or anything else that doesn't have a workaround on any modern browser with a right-click. 

--
Joe Atzberger
LibLime - Open Source Library Solutions

On Fri, Jul 24, 2009 at 12:22 PM, Wagner, Jane <jwagner@ptfs.com> wrote:
If XSLT is turned on (for OPAC details and results), the syspref
OPACURLOpenInNewWindow is not obeyed.  For sites who want URLs to open
in a new window, this is a problem ranging from mildly annoying to a
serious concern.  I reported it as a bug (#3098) some time ago, and
revisited it again today for one of my sites.

I have not yet been able to figure out how to pass the syspref into the
XSLT files, but I have been able to hardcode those files to force
opening a new window instead of the default same window.  Following
discussion on the IRC today, I'm not going to send this as a patch, but
I thought I'd share it for other sites who want URLs to open in a new
window and want an interim local fix until the larger problem of
passing/obeying sysprefs is solved.

Under koha-tmpl/opac-tmpl/prog/en/xslt, in MARC21slim2OPACDetail.xsl and
MARC21slim2OPACResults.xsl, under the 856 section, search for the line

<a><xsl:attribute name="href"><xsl:value-of
select="marc:subfield[@code='u']"/></xsl:attribute>

Change the beginning <a> as follows:

<a target="_blank">

Jane Wagner
Library Systems Analyst
PTFS Inc.
Content Management and Library Solutions
6400 Goldsboro Road, Suite 200
Bethesda, MD  20817
(301) 654-8088 x 151
jwagner@ptfs.com