很老的效果了，但对于一些生手来说还是很有用处的。
把如下代码加入<body>区域中
以下是引用片段：
<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="0,0,1,1"></layer>
<layer name="a8" left=10 top=10 visibility=show bgcolor="#fff000" clip="0,0,1,1"></layer>
<layer name="a9" left=10 top=10 visibility=show bgcolor="#ffa000" clip="0,0,1,1"></layer>
<layer name="a10" left=10 top=10 visibility=show bgcolor="#ff00ff" clip="0,0,1,1"></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="0,0,2,2"></layer>
<div id="starsDiv" style="position:absolute;top:0px;left:0px">
<div style="position:relative;width:2px;height:2px;background:#ffffff;font-size:2px"></div>
<div style="position:relative;width:1px;height:1px;background:#fff000;font-size:1px"></div>
<div style="position:relative;width:1px;height:1px;background:#ffa000;font-size:1px"></div>
<div style="position:relative;width:1px;height:1px;background:#ff00ff;font-size:1px"></div>
<div style="position:relative;width:1px;height:1px;background:#00ff00;font-size:1px"></div>
<div style="position:relative;width:1px;height:1px;background:#0000ff;font-size:1px"></div>
<div style="position:relative;width:1px;height:1px;background:#FF0000;font-size:1px"></div>
<div style="position:relative;width:1px;height:1px;background:#ffffff;font-size:1px"></div>
<div style="position:relative;width:1px;height:1px;background:#fff000;font-size:1px"></div>
<div style="position:relative;width:1px;height:1px;background:#ffa000;font-size:1px"></div>
<div style="position:relative;width:1px;height:1px;background:#ff00ff;font-size:1px"></div>
<div style="position:relative;width:2px;height:2px;background:#ff00ff;font-size:2px"></div>
<div style="position:relative;width:1px;height:1px;background:#0000ff;font-size:1px"></div>
<div style="position:relative;width:1px;height:1px;background:#FF0000;font-size:1px"></div>
</div>
<SCRIPT LANGUAGE="JavaScript">
<!-- Begin
var Clrs = new Array(9);
Clrs[0] = 'ff0000';
Clrs[1] = '00ff00';
Clrs[2] = '000aff';
Clrs[3] = 'ff00ff';
Clrs[4] = 'ffa500';
Clrs[5] = 'ffff00';
Clrs[6] = '00ff00';
Clrs[7] = 'ffffff';
Clrs[8] = 'fffff0';
var sClrs = new Array(5);
sClrs[0] = 'ffa500';
sClrs[1] = '55ff66';
sClrs[2] = 'AC9DFC';
sClrs[3] = 'fff000';
sClrs[4] = 'fffff0';
var yBase;
var xBase;
var step;
var currStep = 0;
var Xpos = 1;
var Ypos = 1;
var initialStarColor = 'ffa000';
var Mtop = 250;
var Mleft = 250;
function Fireworks() {
if (document.all) {
yBase = window.document.body.offsetHeight / 3;
xBase = window.document.body.offsetWidth / 8;
}
else if (document.layers) {
yBase = window.innerHeight / 3;
xBase = window.innerWidth / 8;
}
if (document.all) {
step = 5;
for ( i = 0 ; i < starsDiv.all.length ; i++ ) {
for (ai = 0; ai < Clrs.length; ai++) {
var c = Math.round(Math.random()*[ai]);
}
if (currStep < 90)
starsDiv.all[i].style.background=initialStarColor;
if (currStep > 90)
starsDiv.all[i].style.background=Clrs[c];
starsDiv.all[i].style.top = Mtop + yBase*Math.sin((currStep+i*5)/3)*Math.sin(550+currStep/100)
starsDiv.all[i].style.left = Mleft + yBase*Math.cos((currStep+i*5)/3)*Math.sin(550+currStep/100)
}
}
else if (document.layers) {
step = 5;
for ( j = 0 ; j < 24 ; j++ ) { //number of NS layers!
var templayer = "a"+j;
for (ai = 0; ai < Clrs.length; ai++) {
var c = Math.round(Math.random()*[ai]);
}
if (currStep < 90)
document.layers[templayer].bgColor=initialStarColor;
if (currStep > 90)
document.layers[templayer].bgColor=Clrs[c];
document.layers[templayer].top = Mtop + yBase*Math.sin((currStep+j*5)/3)*Math.sin(550+currStep/100)
document.layers[templayer].left = Mleft + yBase*Math.cos((currStep+j*5)/3)*Math.sin(550+currStep/100)
}
}
currStep+= step;
T=setTimeout("Fireworks()",5);
if (currStep == 220) {
currStep = -10;
for (n = 0; n < sClrs.length; n++) {
var k = Math.round(Math.random()*n);
}
initialStarColor = sClrs[k];
if (document.all) {
Dtop = window.document.body.clientHeight - 250;
Dleft = xBase * 3.5;
Mtop = Math.round(Math.random()*Dtop);
Mleft = Math.round(Math.random()*Dleft);
document.all.starsDiv.style.top = Mtop+document.body.scrollTop;
document.all.starsDiv.style.left = Mleft+document.body.scrollLeft;
}
else if (document.layers) {
Dleft = window.innerWidth - 100;
Dtop = window.innerHeight - 100;
Mtop = Math.round(Math.random()*Dtop+window.pageYOffset);
Mleft = Math.round(Math.random()*Dleft+window.pageXOffset);
document.layers[templayer].top = Mtop;
document.layers[templayer].left = Mleft;
}
if ((Mtop < 20) || (Mleft < 20)) {
Mtop += 90;
Mleft += 90;
}
}
}
Fireworks();
// End -->
</script>
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