Full width slider for home page

Hi guys

I've been using Atahualpa for some time on a number of sites.
Now I want to use it on another one.

I'm trying to insert a full width slider that takes up the whole width of the screen onto the home page below the logo area. The slider has the ability to only show on the home page.
I've set the layout width of the theme at 980.
When I insert the slider code below the header through the theme options, the width of the slider inevitably shrinks to 980.
If I set the theme layout width higher, the internal pages will look weird.

How do I get around this?
Would appreciate your advice. Thanks.