Hi guys,
I really need some help with a background on a website. You can see the image here:

Now what i want is first of all to have the image placed in the top middle. Then i would like to have something like 10x250px (Width x Height) from the left of the image to be repeated - should a visitors screen resolution be wider than the image it won't seem like the site just stops at the edges.
I've tried several things, but it seems i keep running into different kind of technicalities that I'm not sure how to get around. So I would like to know how you would do it?
(The websites content will be 990px wide if that helps)
http://www.w3schools.com/css/pr_background-position.asp