Including $totalonline number in non-VB page?

[GlitterKill]

I simply want to add the $totalusers number displayed in the What's going On? box in the header for my site on all pages. The end result will be something like, "255 Users Online". All I need is the total number. The method used to get this number is not important. It can be a real-time script or simply some code that outputs the number to a text file every 10 minutes to be included in the header. I have seen plenty of people ask this question but none needed something this simple. I have also seen very few solutions that do something like this.

I already have the forum global.php file included on all my site pages outside of VB because I already have a working vb login box on all pages.

Thanks in advance!