This page has notes about the Dokuwiki installation and configuration of a farm (ie virtual hosting of several website with the same dokuwiki installation)
The easiest way is to use the farmer plugin
The install.php file that comes with the dokuwiki zip file creates three configuration files:
In the cache directory, you may find js (javascript) and css file that use the basedir (DOKU_BASE) configuration parameter.
Example:
DOKU_BASE='/'
DOKU_TPL='/lib/tpl/default/'
DOKU_UHN=0
DOKU_UHC=0
a.interwiki{background:transparent url(/farmer/lib/images/interwiki.png) 0px 1px no-repeat;padding:1px 0px 1px 16px;}
Verify the basedir. If you use virtual host, it must be set to a single slash.
Purge: