[ElfMage]

I am assuming that you have vBlog powering your Blog.

Try this and let me know..

PHP Code:

<a href="#" onclick="window.open('/forum/javachat.php?$session[sessionurl]do=lite','javachat','statusbar=no,menubar=no,toolbar=no,scrollbars=no,resizable=yes,directories=no,width=750,height=550,left=50,top=100,screenX=50,screenY=100'); return false;" class="tab">Chat</a>

<a href="http://www.quantnet.org/wiki/" class="<if condition="THIS_SCRIPT == 'vbwiki'">tabpage<else />tab</if>">Wiki</a>

<a href="http://www.quantnet.org/forum/blog.php" class="<if condition="THIS_SCRIPT == 'blog'">tabpage<else />tab</if>">Blog</a>

<a href="http://www.quantnet.org/forum/" class="<if condition="(THIS_SCRIPT != 'vbwiki') && (THIS_SCRIPT != 'blog') && (THIS_SCRIPT != 'adv_index')">tabpage<else />tab</if>">Forum</a>

<a href="http://www.quantnet.org/" class="<if condition="THIS_SCRIPT == 'adv_index'">tabpage<else />tab</if>">Home</a>