WordPress MU

Hi.
I like to know the name of the variable to pass the blogid on the url.
Thanks.
Byron H.

I'm looking on the previous version was a variable named wpblog.
What happened to this variable?
Where should i add it again?
Thanks.
Byron H.

I need this variable to show feed to some readers that i'm having troubles.
If somebody need it:
I added this lines in wpmu-settings.php (line 115 apr.):

$blog_id = $current_blog->blog_id;
// added lines
if (isset($_GET["blog_id"]))
$blog_id = $_GET["blog_id"];
// end added lines
$public = $current_blog->public;


If somebody has a better solution, thanks.
Byron H.

global $blog_id;

That's the number of the specific blog, not the name. Is that what you're asking for?