iPhone floating header element like native app

How can i have a section 开发者_StackOverflow社区in iPhone web site(header) to remain in a fixed position and rest of the site to scroll(preventDefault or watever) so that it behaves like a native app...any safari api's or javascript that i can use to do this?

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I think i found the solution for you: iScroll by Matteo Spinelli (Demo)

The overflow:scroll for mobile webkit. Project started because webkit for iPhone does not provide a native way to scroll content inside a fixed size (width/height) div. So basically it was impossible to have a fixed header/footer and a scrolling central area. Until now.

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If I understand that right you want an element staying at a fixed position? Have you tried creating a div and setting it's css attribute position to fixed? See here: CSS Property Position