把如下代码加入
1<body>区域中
2<script language="JavaScript">
3<!--
4colours=new Array('#ffffff','#ff0000','#00ff00','#ffffff','#ff00ff','#ffa500','#fff000','#0000ff','#ffffff')
5
6y = 0;
7x = 0;
8n6=(document.getElementById&&!document.all);
9ns=(document.layers);
10ie=(document.all);
11d=(ns||ie)?'document.':'document.getElementById("';
12a=(ns||n6)?'':'all.';
13n6r=(n6)?'")':'';
14s=(ns)?'':'.style';
15n=(n6)?9:10;
16if (ns){
17for (i = 0; i < n; i++)
18document.write('<layer name="dots'+i+'" top=0 left=0 width='+i/2+' height='+i/2+' bgcolor=#ff0000></layer>');
19}
20if (ie)
21document.write('<div id="con" style="position:absolute;top:0px;left:0px"><div style="position:relative">');
22if (ie||n6){
23for (i = 0; i < n; i++)
24document.write('<div id="dots'+i+'" style="position:absolute;top:0px;left:0px;width:'+i/2+'px;height:'+i/2+'px;background:#ff0000;font-size:'+i/2+'"></div>');
25}
26if (ie)
27document.write('</div></div>');
28
29
30(ns||n6)?window.captureEvents(Event.MOUSEMOVE):0;
31function Mouse(evnt){
32y = (ns||n6)?evnt.pageY+4 - window.pageYOffset:event.y+4;
33x = (ns||n6)?evnt.pageX+1:event.x+1;
34}
35(ns)?window.onMouseMove=Mouse:document.onmousemove=Mouse;
36
37function animate(){
38h=(ns||n6)?window.innerHeight:document.body.clientHeight;
39w=(ns||n6)?window.innerWidth:document.body.clientWidth;
40
41o=(ns||n6)?window.pageYOffset:0;
42if (ie)con.style.top=document.body.scrollTop;
43for (i = 0; i < n; i++){
44var temp1 = eval(d+a+"dots"+i+n6r+s);
45var randcolours = Math.floor(Math.random()*colours.length);
46(ns)?temp1.bgColor = colours[randcolours]:temp1.background = colours[randcolours];
47if (i < n-1){
48var temp2 = eval(d+a+"dots"+(i+1)+n6r+s);
49temp1.top = parseInt(temp2.top);
50temp1.left = parseInt(temp2.left);
51}
52else{
53temp1.top = y+o;
54temp1.left = x;
55}
56if ((y < h/10) || (y > h-h/10) || (x < w/10) || (x > w-w/10)){
57var temp3 = eval(d+a+"dots"+0+n6r+s);
58temp3.top = (y-25)+Math.random()*50;
59temp3.left = (x-25)+Math.random()*50;
60temp2.top = parseInt(temp3.top)+o;
61temp2.left = parseInt(temp3.left);
62}
63}
64setTimeout("animate()",30);
65}
66animate();
67// -->
68</script></body>