AlliedModders - /Admin

Well, im sure everyone knows when u write /admin in a hns server, theres almost always comes the names on, which admin is online or not.. Its mostly in HideNseek serveres. I got my own hns server, and im looking for that thing to do, so others can write /admin, and with a green colour text that says: No admins online, or if someone is online the name comes.
- And so im looking for the thing so admins are writing with green colour.

I dont know if its a plugin or not, if it is could someone attach it?
I will give +karma for that (:

I hope someone will help me with it :)

Thx, S0ldi3r