My b2evolution Version: Not Entered

Hi,

This is my third post, hopefully somone will reply to this one!

I want to output the Blog number to the html, something like this:

<a href="blog<?php echo $blog_number; ?>.php">link text</a>

so it outputs this:

<a href="blog1.php">link text</a>

Can anyone tell me the name for the variable I am after (the one where I have put $blog_number in the above example?

Thanks,