How to check in sidebar (forum blocks) if user is logged in?

[wman]

The template is block_html and in that template I found the following variable: {vb:raw content}

I was not sure how to modify that variable though. Then I found this, and it seems to work:

if (vB::$vbulletin->userinfo[userid])
{
	$my_output = "you are logged in";
	return $my_output;
}
else
{
	$my_output = "you are not logged in";
	return $my_output;
}