PAge Colour Change

The Demo May Not Work To See Demo Copy The Below Code Save As dsd.Html File And You Can See This Code Will Work On The Site Theme Having Plain White Background

// Select fade-effect below:
// Set 1 if the background may fade from dark to medium 
// Set 2 if the background may fade from light to medium 
// Set 3 if the background may fade from very dark to very light light
// Set 4 if the background may fade from light to very light
// Set 5 if the background may fade from dark to very dark 
var fade_effect=3

// What type of gradient should be applied Internet Explorer 5x or higher?
// Set "none" or "horizontal" or "vertical"
var gradient_effect="horizontal"

// Speed higher=slower
var speed=60

///////////////////////////////////////////////////////////////////////////
// CONFIGURATION ENDS HERE
///////////////////////////////////////////////////////////////////////////

var browserinfos=navigator.userAgent 
var ie4=document.all&&!document.getElementById
var ie5=document.all&&document.getElementById&&!browserinfos.match(/Opera/)
var ns4=document.layers
var ns6=document.getElementById&&!document.all
var opera=browserinfos.match(/Opera/)  
var browserok=ie4||ie5||ns4||ns6||opera

if (fade_effect==1) {
	var darkmax=1
	var lightmax=127
}
if (fade_effect==2) {
	var darkmax=127
	var lightmax=254
}
if (fade_effect==3) {
	var darkmax=1
	var lightmax=254
}
if (fade_effect==4) {
	var darkmax=190
	var lightmax=254
}
if (fade_effect==5) {
	var darkmax=1
	var lightmax=80
}
var hexc = new Array('0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F')

var newred
var newgreen
var newblue
var oldred
var oldgreen
var oldblue

var redcol_1
var redcol_2 
var greencol_1 
var greencol_2 
var bluecol_1 
var bluecol_2 
var oldcolor
var newcolor
var firsttime=true
 
var stepred=1
var stepgreen=1
var stepblue=1

function setrandomcolor() {
	var range=(lightmax-darkmax)
	if (firsttime) {
		newred=Math.ceil(range*Math.random())+darkmax
		newgreen=Math.ceil(range*Math.random())+darkmax
		newblue=Math.ceil(range*Math.random())+darkmax
		firsttime=false
	}
	
	oldred=Math.ceil(range*Math.random())+darkmax
	oldgreen=Math.ceil(range*Math.random())+darkmax
	oldblue=Math.ceil(range*Math.random())+darkmax
	
	stepred=newred-oldred
	if (oldred>newred) {stepred=1}
	else if (oldred<newred) {stepred=-1}
	else {stepred=0}
	
	stepgreen=newgreen-oldgreen
	if (oldgreen>newgreen) {stepgreen=1}
	else if (oldgreen<newgreen) {stepgreen=-1}
	else {stepgreen=0}
	
	stepblue=newblue-oldblue
	if (oldblue>newblue) {stepblue=1}
	else if (oldblue<newblue) {stepblue=-1}
	else {stepblue=0}
	fadebg()
}

if (browserok) {
	window.onload=setrandomcolor
}
</script>

</head><body bgcolor="#B20D21">
</body></html>

This code results in: