Changing background based on time of day (using javascript)

Question

Okay, I have two different background .jpgs that I want to used as the backgroud depending on what time of day it is. I want the sunny background from 7am to 8pm and the nig

Answer 1

You don't need to use a new stylesheet for each image. You can change only the background image from javascript:

EDIT: updated to show the recommended location of the script inside the page. This has been tested and works in Firefox and Internet Explorer.