Thread:Project:Support desk/Segregated external links

I'm looking for a solution that may or may not be viable. I have a new site still under construction with Mediawiki 1.18 installed. This installation is bridged with an SMF 2.0.2 forum installation. I have PHP 5.2.17 installed and MySQL 5.0.91 for a database, if that matters. Here's my issue.

The main website and the forum have links to the wiki and are setup to open in the same window. The wiki will have a number of external links and is set to open these in a new window. However, I have external links to the the main site and the forum built into the sidebar that I would like to open in the same window (i.e. _self). Is this type of segregation of external links possible?

http://theantiquegique.com/index.php - Main site http://theantiquegique.com/mediawiki/index.php - Wiki http://theantiquegique.com/forum/index.php - Forum

Thank you,