Issue with including a file in codeigniter folder from root

[eluser]hartmannr76[/eluser]
Maybe ill explain a little more..

As a representation in a tree format:

These are files and folders in my root ((f) will represent a folder):
(f)ci
->(f)application
->(f)controllers
->site.php (this has a method that im trying to call outside of the ci folder)
(f)images
(f)css
-index.php (this is where i call the include(/ci/site.php))

I mean since its not working I know there is something wrong but Im just not sure if im missing something I need to add in or whatnot.. does this help a little more explaining?