Remove index.php and call default controller method when page loads

[eluser]fiktionvt[/eluser]
I am kind of new to setting up a new page in codeigniter. say my page domain is www.example.com

I have a controller called Site, with two methods index(), and home(). When I navigate to www.example.com I want it to call the Site.php controller. It can either call index() or home() it doesn't really matter but I want the url to either display www.example.com or www.example.com/home

I know this is very basic but for some reason I can't find how to set this up. Right now when the page loads it somehow finds the Site controller and is calling the index function, I am not sure how it is doing that.

Anyway if someone can tell me how to properly do this that would be great. Thanks for any help!

-Fik