Changing images in the background

Is it possible to photos that are in the background changed?

I mean the background quite at the top of the page.

Thanks for the help

Hi,
I can guess that you want use img slideshow instead static bg image, am I right ?

if yes, I think it should be possible, in theory all you need is:
slideshow module which allows you add also content inside , published on header position.
but this module should use 100% width and probably it request few others css customizations steps.

Thanks. Do you have any idea? What module can I use?

Module is not a problem, there are so many of them.
The main problem is to customize css code.

p.s.
But in free time check those:
JUX Background Slideshow, BT Background Slideshow, Fun Supersized Background