Thread count on current forumdisplay page

[Kodaks]

Hi everyone,
I've been trying to figure out the code to use to determine the number of threads listed on the CURRENT forumdisplay page.  

For example, the following if statement can be used to determine the number of posts on a CURRENT showthread page:

PHP Code:

<if ($GLOBALS['postcount'] - $GLOBALS['start']) >= 4 then>

---

What would be the equivalent for the CURRENT forumdisplay listing?