threadid/URL question

Here is an example of a link on my site:

Song's from the 60's alphabetically

As you can see it's [forum_title]/[thread_id]-[thread_title].html

I have this code in a vbulletin mod

if (!in_array($foruminfo[forumid], $excludedForums)) {
$shortUrl = 'http://www.yourforumsdomain.com/forums/showthread.php?t='.$newpost[threadid];

How do I fix that code (the part I underlined)?

Depending on how and where it is called, you will need to make it vbseo'ed using out functions:
vBSEO Functions for Extensibility