I found some useful javascript coding from another site that might be of interest to some people. It changes the background according to the time of day it is.
<html>
<head>
<style type = "text/css">
body {background-color:#FFFFFF;}
</style>
</head>
<body onload = "chgbg()">
<script type="text/javascript">
function chgbg() {
var d = new Date();
var h = d.getHours();
if ((h >= 6) && (h < 9)) {document.body.style.backgroundColor = "#FFFFFF"; document.body.style.backgroundImage="url(sunrise.jpg)"}
if ((h >= 9) && (h < 20)) {document.body.style.backgroundColor = "#FFFFFF"; document.body.style.backgroundImage="url(day.jpg)"}
if ((h >= 20) && (h < 22)) {document.body.style.backgroundColor = "#FFFFFF"; document.body.style.backgroundImage="url(sunset.jpg)"}
if ((h >= 22) || (h<6)) {document.body.style.backgroundColor = "#FFFFFF"; document.body.style.backgroundImage="url(night.jpg)"}
window.setTimeout (chgbg, 5000); // update time (hour) every five seconds
}
</script>
</body>
</html>
The background image is changed with css, not document.write() which over-writes the current content of the page. If JavaScript is disabled (but how many people in fact do have it disabled?) then the default background colour (white) is shown.
Empty your mind, be formless like water. If you put water into a cup, it becomes the cup. You put water into a bottle and it becomes the bottle. You put it in a teapot it becomes the teapot. Now, water can flow or it can crash. Be water my friend.
jacek wrote:every 5 seconds seems excessive if it will only update every few hours
Either way, handy piece of code I suppose depending on the site. As for people disabling JavaScript, I do not know anyone who does it on a personal computer; I know my school has it disabled by default so I'm not sure.
