Stretching background image to fit browser

[goxy63]

Think this would look kinda nice on many vbulletin sites, does anyone know how to do that

For example
https://twitter.com/

Here you can see it in action, its not vbulletin tho but....
I downloaded background image and its JPEG format 1040x660px just 32KB

Anyone can point me how to do that

Thanks

[Lynne]

Try googling for a scalable background image.

http://css-tricks.com/perfect-full-page-background-image/