Navigation like a site without framework

[eluser]Haskabab[/eluser]
Hello guys!

I'm new to CI but i definitely see it's capabilities and I can't wait to fully master it. I've read the whole user guide and watched some screencasts about how it works and I'm getting the hang of it already.

The only question I have that remains unanswered is how I get a navigation system to work.

Normally when creation a site I would have an index.php and within that the page's layout and a snippet for getting the file to include (what page to show) through the $_GET.

But how do I get the same effect using codeIgniter? Since I need to make a view file to view the site, how do I include a page withing a view file? Or am I getting the wrong idea?

If anybody has anything helpful about how to achieve a navigation system of some sort, please reply!

Thanks in advance,
Nick