Thread title as page title in standard error?

[zennifer]

I am trying to make the thread title the page title when a guest hit's the error/login page. Here's what I have done:

Original:
<title>$pagetitle</title>

What I changed it to:
<title>$vboptions[bbtitle] - $thread[title]</title>

The board's name appears but not the thread title.

Anyone know what I'm doing wrong?
-Jenn

[LordJMann]

The error page is seperate from the thread page. Thus the thread title variable is not present.

[zennifer]

The thread/forum/post ID is in the URL is there any way to pull this information into the standard error page?