text multi-fx animacion script

este javascript muestra una pequeña animacion, en donde muestra un anillo de puntos que cambia de color y lugar dentro de la pantalla.

Código Javascript


<html>
<title>text Multi-Fx</title>
<body bgcolor=000000>
<script type="text/javascript">
/*
Multi FX
Copyright Kurt Grigg (website.lineone.net/~kurt.grigg/javascript)
To add more shock to your site, visit www.DHTMLShock.com
*/
var CoLoUrS=new Array('FF0000','FFF000','FF00FF','00FF00','FFFFFF','FFA000','0055ff');
var ThingsInArray;
var step=0.4;
var a_StEp=0.1;
var RunTime=0;
var currStep = 0;
var Xpos = 0;
var Ypos = 0;
var cntr=70;
var count_a=-1;
var move_a=1;
var curColour;
var count=-1;
var move=1;
if (document.layers){
document.write('<LAYER NAME="a0" LEFT=10 TOP=10 CLIP="0,0,2,2"></LAYER>'//40
+'<LAYER NAME="a1" LEFT=0 TOP=0 CLIP="0,0,2,2"></LAYER>'
+'<LAYER NAME="a2" LEFT=0 TOP=0 CLIP="0,0,2,2"></LAYER>'
+'<LAYER NAME="a3" LEFT=0 TOP=0 CLIP="0,0,2,2"></LAYER>'
+'<LAYER NAME="a4" LEFT=0 TOP=0 CLIP="0,0,2,2"></LAYER>'
+'<LAYER NAME="a5" LEFT=0 TOP=0 CLIP="0,0,2,2"></LAYER>'
+'<LAYER NAME="a6" LEFT=0 TOP=0 CLIP="0,0,2,2"></LAYER>'
+'<LAYER NAME="a7" LEFT=0 TOP=0 CLIP="0,0,2,2"></LAYER>');
ThingsInArray=new Array(document.a1,document.a2,document.a3,document.a4,document.a5,document.a6,document.a7)
}
else if (document.all){
document.write('<div id="ieDiv" style="position:absolute;top:0px;left:0px">'
+'<div id="c" style="position:relative">'
+'<div style="position:absolute;top:0px;left:0px;width:2px;height:2px;font-size:2px"></div>'
+'<div style="position:absolute;top:0px;left:0px;width:2px;height:2px;font-size:2px"></div>'
+'<div style="position:absolute;top:0px;left:0px;width:2px;height:2px;font-size:2px"></div>'
+'<div style="position:absolute;top:0px;left:0px;width:2px;height:2px;font-size:2px"></div>'
+'<div style="position:absolute;top:0px;left:0px;width:2px;height:2px;font-size:2px"></div>'
+'<div style="position:absolute;top:0px;left:0px;width:2px;height:2px;font-size:2px"></div>'
+'<div style="position:absolute;top:0px;left:0px;width:2px;height:2px;font-size:2px"></div>'
+'</div>'
+'</div>');
ThingsInArray=new Array(ieDiv.all.c.all[0],ieDiv.all.c.all[1],ieDiv.all.c.all[2],ieDiv.all.c.all[3],ieDiv.all.c.all[4],ieDiv.all.c.all[5],ieDiv.all.c.all[6])
}
function ColourStep(){
if (count_a < CoLoUrS.length)count_a+=move_a;
if (count_a >= CoLoUrS.length)count_a=0;
curColour=CoLoUrS[count_a];
TMR_a=setTimeout('ColourStep()',1500);
return curColour;
}
function CycleThroughArray(){
if (count < ThingsInArray.length)count=count+move;
if (count >= ThingsInArray.length)count=0;
if (document.layers)ThingsInArray[count].bgColor=curColour;
if (document.all)ThingsInArray[count].style.background=curColour;
setTimeout('CycleThroughArray()',200)
}
function moveAbout(){
if (document.layers)
{
Ypos = window.pageYOffset+window.innerHeight/2 + window.innerHeight/3 * Math.cos((RunTime)/3)*Math.cos(RunTime/50);
Xpos = window.pageXOffset+window.innerWidth/2 + window.innerWidth/2.4 * Math.sin((RunTime)/5)*Math.cos(RunTime/30);
}
else if (document.all)
 { 
Ypos = document.body.scrollTop+document.body.offsetHeight/2 + document.body.offsetHeight/2.8*Math.cos((RunTime)/3)*Math.cos(RunTime/10);
Xpos=  document.body.scrollLeft+document.body.offsetWidth/2 + document.body.offsetWidth/2.4*Math.sin((RunTime)/5)*Math.sin(RunTime/20);
 }
RunTime+=a_StEp;
Tma=setTimeout("moveAbout()", 10);
}
function TwistnSpin(){
if (document.layers)
{
 for ( i = 0 ; i < 8 ; i++ ) //number of NS layers!
 {
  var templayer="a"+i
  document.layers[templayer].top = Ypos+cntr*Math.cos(((currStep+1)+i*4.5)/5)*Math.cos(currStep/10)
  document.layers[templayer].left =Xpos+cntr*Math.sin(((currStep+1)+i*4.5)/5);
 }
}
else if (document.all)
{
 for (i=0;i<ieDiv.all.c.all.length;i++)
 {
 ieDiv.all.c.all[i].style.top = Ypos+cntr*Math.cos(((currStep+1)+i*4.5)/5)*Math.cos(currStep/10)
 ieDiv.all.c.all[i].style.left= Xpos+cntr*Math.sin(((currStep+1)+i*4.5)/5); 
 }
}
currStep+=step;
setTimeout("TwistnSpin()",10);
}
function Shrink(){
cntr-=0.5;
GoShrink=setTimeout('Shrink()',10);
if (cntr <=20)
{clearTimeout(GoShrink);Swell()}
}
function Swell(){
cntr+=0.5;
GoSwell=setTimeout('Swell()',10);
if (cntr >=70)
{clearTimeout(GoSwell);Shrink()} 
}
function StArTuP(){
moveAbout();
TwistnSpin();
Shrink();
ColourStep();
CycleThroughArray();
}
StArTuP();
// -->
</SCRIPT>
</body>
</html>
Ver ejemplo Javascript en funcionamiento