Slider help

Slider help

Hello everyone,

I am trying to make this simple slider for a project - but im a rookie in jquery and therefor i need some help if anyone have the time.

I have made this fiddle: DEMO

I need help with building my navigation so i can jump to the different slides back and fourth using the CSS class. Im not sure how to do this from this point. Can someone take a look and maybe update the fiddle if you have a smart solution.

thank you