[kh99]

If you know the value of THIS_SCRIPT for each page (should be defined near the beginning of the php script), then you should be able to do something like:

<li><a href="video.php" class="videos<if condition="THIS_SCRIPT == 'video'"> currentclass</if>"></a></li>
<li><a href="calendar.php" class="calendar<if condition="THIS_SCRIPT == 'calendar'"> currentclass</if>"></a></li>
<li><a href="forumdisplay.php?f=7" class="articles<if condition="THIS_SCRIPT == 'forumdisplay' && $GLOBALS['forumid'] == 7"> currentclass</if>"></a></li>

I just guessed at the conditions, you might have to adjust them. There is no video.php in the original vb files, so if that's a custom script you might have to add a definition for THIS_SCRIPT if it doesn't have one already.

Also, you need to add your CSS for currentclass somewhere, maybe add it to the additional.css template.