4. conjunto de estrellas que siguen el cursor 

<LAYER NAME="a0" LEFT=10 TOP=10 VISIBILITY=SHOW BGCOLOR="#ffffff" CLIP="0,0,1,1"></LAYER>  
<LAYER NAME="a1" LEFT=10 TOP=10 VISIBILITY=SHOW BGCOLOR="#fff000" CLIP="0,0,1,1"></LAYER> 
<LAYER NAME="a2" LEFT=10 TOP=10 VISIBILITY=SHOW BGCOLOR="#ffa000" CLIP="0,0,1,1"></LAYER> 
<LAYER NAME="a3" LEFT=10 TOP=10 VISIBILITY=SHOW BGCOLOR="#ff00ff" CLIP="0,0,1,1"></LAYER> 
<LAYER NAME="a4" LEFT=10 TOP=10 VISIBILITY=SHOW BGCOLOR="#00ff00" CLIP="0,0,1,1"></LAYER> 
<LAYER NAME="a5" LEFT=10 TOP=10 VISIBILITY=SHOW BGCOLOR="#FF00FF" CLIP="0,0,1,1"></LAYER> 
<LAYER NAME="a6" LEFT=10 TOP=10 VISIBILITY=SHOW BGCOLOR="#FF0000" CLIP="0,0,1,1"></LAYER> 
<LAYER NAME="a7" LEFT=10 TOP=10 VISIBILITY=SHOW BGCOLOR="#ffffff" CLIP="0,0,2,2"></LAYER> 
<LAYER NAME="a8" LEFT=10 TOP=10 VISIBILITY=SHOW BGCOLOR="#fff000" CLIP="0,0,2,2"></LAYER> 
<LAYER NAME="a9" LEFT=10 TOP=10 VISIBILITY=SHOW BGCOLOR="#ffa000" CLIP="0,0,2,2"></LAYER> 
<LAYER NAME="a10" LEFT=10 TOP=10 VISIBILITY=SHOW BGCOLOR="#ff00ff" CLIP="0,0,2,2"></LAYER> 
<LAYER NAME="a11" LEFT=10 TOP=10 VISIBILITY=SHOW BGCOLOR="#00ff00" CLIP="0,0,2,2"></LAYER> 
<LAYER NAME="a12" LEFT=10 TOP=10 VISIBILITY=SHOW BGCOLOR="#0000ff" CLIP="0,0,2,2"></LAYER> 
<LAYER NAME="a13" LEFT=10 TOP=10 VISIBILITY=SHOW BGCOLOR="#FF0000" CLIP="0,0,3,3"></LAYER> 


<script language="JavaScript"> 
if (document.all){ 
with (document){ 
write('<div id="starsDiv" style="position:absolute;top:0px;left:0px">') 
write('<div style="position:relative;width:1px;height:1px;background:#ffffff;font-size:1px;visibility:visible"></div>')
write('<div style="position:relative;width:1px;height:1px;background:#fff000;font-size:1px;visibility:visible"></div>') 
write('<div style="position:relative;width:1px;height:1px;background:#ffa000;font-size:1px;visibility:visible"></div>') 
write('<div style="position:relative;width:1px;height:1px;background:#ff00ff;font-size:1px;visibility:visible"></div>') 
write('<div style="position:relative;width:1px;height:1px;background:#00ff00;font-size:1px;visibility:visible"></div>') 
write('<div style="position:relative;width:1px;height:1px;background:#0000ff;font-size:1px;visibility:visible"></div>') 
write('<div style="position:relative;width:1px;height:1px;background:#FF0000;font-size:1px;visibility:visible"></div>') 
write('<div style="position:relative;width:2px;height:2px;background:#ffffff;font-size:2px;visibility:visible"></div>')
write('<div style="position:relative;width:2px;height:2px;background:#fff000;font-size:2px;visibility:visible"></div>') 
write('<div style="position:relative;width:2px;height:2px;background:#ffa000;font-size:2px;visibility:visible"></div>') 
write('<div style="position:relative;width:2px;height:2px;background:#ff00ff;font-size:2px;visibility:visible"></div>') 
write('<div style="position:relative;width:2px;height:2px;background:#00ff00;font-size:2px;visibility:visible"></div>') 
write('<div style="position:relative;width:2px;height:2px;background:#0000ff;font-size:2px;visibility:visible"></div>') 
write('<div style="position:relative;width:3px;height:3px;background:#FF0000;font-size:3px;visibility:visible"></div>') 
write('</div>') 
} 
} 


var Clrs=new Array(6) 
Clrs[0]='ff0000'; 
Clrs[1]='00ff00'; 
Clrs[2]='000aff'; 
Clrs[3]='ff00ff'; 
Clrs[4]='fff000'; 
Clrs[5]='fffff0'; 



if (document.layers) 
{window.captureEvents(Event.MOUSEMOVE);} 
var yBase = 200; 
var xBase = 200; 
var step; 
var currStep = 0; 
var Xpos = 1; 
var Ypos = 1; 

if (document.all) 
{ 
function MoveHandler(){ 
Xpos = document.body.scrollLeft+event.x; 
Ypos = document.body.scrollTop+event.y; 
} 
document.onmousemove = MoveHandler; 
} 

else if (document.layers) 
{ 
function xMoveHandler(evnt){ 
Xpos = evnt.pageX; 
Ypos = evnt.pageY; 
} 
window.onMouseMove = xMoveHandler; 
} 

function animateLogo() { 
if (document.all) 
{ 
yBase = window.document.body.offsetHeight/4; 
xBase = window.document.body.offsetWidth/4; 
} 
else if (document.layers) 
{ 
yBase = window.innerHeight/4; 
xBase = window.innerWidth/4; 
} 

if (document.all) 
{ 
for ( i = 0 ; i < starsDiv.all.length ; i++ ) 
{step=3; 
starsDiv.all.style.top = Ypos + yBase*Math.cos((currStep + i*4)/12)*Math.cos(0.7+currStep/200); 
starsDiv.all.style.left = Xpos + xBase*Math.sin((currStep + i*3)/10)*Math.sin(8.2+currStep/400); 
for (ai=0; ai < Clrs.length; ai++) 
{ 
var c=Math.round(Math.random()*[ai]); 
} 
starsDiv.all.style.background=Clrs[c]; 
} 
} 

else if (document.layers) 
{ 
for ( j = 0 ; j < 14 ; j++ ) //number of NS layers! 
{step = 4; 
var templayer="a"+j 
document.layers[templayer].top = Ypos + yBase*Math.sin((currStep + j*4)/12)*Math.cos(0.7+currStep/200); 
document.layers[templayer].left = Xpos + xBase*Math.sin((currStep + j*3)/10)*Math.sin(8.2+currStep/400); 
for (aj=0; aj < Clrs.length; aj++) 
{ 
var c=Math.round(Math.random()*[aj]); 
} 
document.layers[templayer].bgColor=Clrs[c]; 
} 
} 
currStep+= step; 
setTimeout("animateLogo()", 10); 
} 
animateLogo(); 
// --> 
</script>