How do I change the background color with JavaScript?

Question

Anyone know a simple method to swap the background color of a webpage using JavaScript?

Answer 1

You don't need AJAX for this, just some plain java script setting the background-color property of the body element, like this:

document.body.style.backgroundColor = "#AA0000";

If you want to do it as if it was initiated by the server, you would have to poll the server and then change the color accordingly.