I am making a website, and the body of the website is very long (8000px).
That's because everytime a link is in the header it slides to another coordinate on the long image.
But I was wondering if it is possible, to always have the coordinates that are shown in the center of the browser.

I don't know if I need javascript or just css and html.

I think I probably first need to find out the width of the users browser right?

I hope you understand what I meen and that you can help me.

The link to the site is: http://wearecrunch.dk/gammelsjuf/