[cocos2d-iphone] Parallax scrolling with touch swiping

Can anybody provide me some code example or a tutorial (or a Book) for 
scrolling large layers?
I have 2 layers 1299 wide and 768 height and want to scroll 
them horizontally when swiping.

Thanks! 

-- 
Did you read the cocos2d documentation? http://tinyurl.com/b8cqm3
Please, read it before asking for help. Probably your answer is there.