蠕动的怪圈

看到效果了吧!

脚本说明:
把如下代码加入<body>区域中
<script language=JavaScript>

if (document.all){
with (document){
write('<div id="starsDiv" style="position:absolute;top:0px;left:0px">')
str = '<div style="position:relative;width:XXpx;height:XXpx;background:#ffffff;font-size:XXpx;visibility:visible"></div>'
re = /XX/g;// 创建正则表达式模式?
str1=str.replace(re,"1")
str2=str.replace(re,"2")
str3=str.replace(re,"3")
for (j=0;j<2;j++)
{
	for (i=0;i<14;i++)
	write(str1)

for (i=0;i<9;i++)
	write(str2)
}
write(str3)
write('</div>')
}
}

if (document.layers)

var yBase = 10;
var xBase = 10;
var step = 0.5;
var currStep = 0;
var Xpos = 520;
var Ypos = 250;

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

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/6;
 xBase = window.document.body.offsetWidth/6;
}
else if (document.layers)
{
 yBase = window.innerHeight/8;
 xBase = window.innerWidth/8;
}

if (document.all)
{
 for ( i = 0 ; i < starsDiv.all.length ; i++ )
 {
  starsDiv.all[i].style.top = Ypos + yBase*Math.sin((currStep + i*4)/12)*Math.cos(400+currStep/200);
 starsDiv.all[i].style.left = Xpos + xBase*Math.sin((currStep + i*3)/10)*Math.sin(currStep/200);
 }
}

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