Access Database Class

[eluser]ranjudsokomora[/eluser]
Hello CI Coders,
I am trying to initialize the database class inside of my rewrite of the router class.
Is there a way to do this? Here is my code so far but I don't know how to take it from here, because this produces an error.

Code:

$CI    =   & load_class('Loader');
$CI    =   new CI_Loader();
$CI->database();