Set background image according to screen resolution

Question

I would like to be able to change my webpage background image according to the screen resolution the user uses so:

if screen resolution is greater than or equal to 1

Answer 1

I've had this same issue but have now found the resolution for it.

The trick is to create a wallpaper image of 1920*1200. When you then apply this wallpaper to the different machines, Windows 7 automatically resizes for best fit.

Hope this helps you all