WP List pages loop

Hi,

So here’s the deal: I’m trying to create a menu of all of my pages on my wordpress site. However, in order to fit in with the dropdown menu I created, I need to add special classes to all li’s and a different one to sub ul’s. I thought the easiest way to do this would be to generate the menu manually through a loop. How do I do this? Or is there an easier way to achieve what I want?

Thanks, I appreciate all of the help.