简单的处理方法：
window.onload = function () {// title
var t = document.getElementsByTagName('title')
if (!!t) {
t = t[0]
t.innerHTML = t.innerHTML.replace(/好/g, '不好')
}
// content
document.body.innerHTML = document.body.innerHTML.replace(/下雨/g, '下雪')
document.body.innerHTML = document.body.innerHTML.replace(/专业/g, '职业')
document.body.innerHTML = document.body.innerHTML.replace(/输入/g, '输出')
}
把这段保存到一个js文件，然后在你要替换的页面包含就可以了。要注意的是编码的问题，为了让不同编码的网页都能处理，这段js中的中文可以尝试使用 Unicode 编码。
<html><head>
</head>
<BODY bgcolor="#000000">
<SCRIPT language=JavaScript1.2>
var snowsrc="images/xuehua1.gif"
var no = 10
var ns4up = (document.layers) ? 1 : 0// browser sniffer
var ie4up = (document.all) ? 1 : 0
var dx, xp, yp// coordinate and position variables
var am, stx, sty// amplitude and step variables
var i, doc_width = 800, doc_height =600
if (ns4up) {
doc_width = self.innerWidth
doc_height = self.innerHeight
} else if (ie4up) {
doc_width = document.body.clientWidth
doc_height = document.body.clientHeight
}
dx = new Array()
xp = new Array()
yp = new Array()
am = new Array()
stx = new Array()
sty = new Array()
for (i = 0i <no++ i) {
dx[i] = 0// set coordinate variables
xp[i] = Math.random()*(doc_width-50)// set position variables
yp[i] = Math.random()*doc_height
am[i] = Math.random()*20// set amplitude variables
stx[i] = 0.02 + Math.random()/10// set step variables
sty[i] = 0.7 + Math.random()// set step variables
if (ns4up) { // set layers
if (i == 0) {
document.write("<layer name=\"dot"+ i +"\" left=\"50\" top=\"50\" visibility=\"show\"><img src='"+snowsrc+"' border=\"0\"></a></layer>")
} else {
document.write("<layer name=\"dot"+ i +"\" left=\"50\" top=\"50\" visibility=\"show\"><img src='"+snowsrc+"' border=\"0\"></layer>")
}
} else if (ie4up) {
if (i == 0) {
document.write("<div id=\"dot"+ i +"\" style=\"POSITION: absoluteZ-INDEX: "+ i +"VISIBILITY: visibleTOP: 15pxLEFT: 15px\"><img src='"+snowsrc+"' border=\"0\"></a></div>")
} else {
document.write("<div id=\"dot"+ i +"\" style=\"POSITION: absoluteZ-INDEX: "+ i +"VISIBILITY: visibleTOP: 15pxLEFT: 15px\"><img src='"+snowsrc+"' border=\"0\"></div>")
}
}
}
function snowNS() { // Netscape main animation function
for (i = 0i <no++ i) { // iterate for every dot
yp[i] += sty[i]
if (yp[i] >doc_height-50) {
xp[i] = Math.random()*(doc_width-am[i]-30)
yp[i] = 0
stx[i] = 0.02 + Math.random()/10
sty[i] = 0.7 + Math.random()
doc_width = self.innerWidth
doc_height = self.innerHeight
}
dx[i] += stx[i]
document.layers["dot"+i].top = yp[i]
document.layers["dot"+i].left = xp[i] + am[i]*Math.sin(dx[i])
}
setTimeout("snowNS()", 10)
}
function snowIE() { // IE main animation function
for (i = 0i <no++ i) { // iterate for every dot
yp[i] += sty[i]
if (yp[i] >doc_height-50) {
xp[i] = Math.random()*(doc_width-am[i]-30)
yp[i] = 0
stx[i] = 0.02 + Math.random()/10
sty[i] = 0.7 + Math.random()
doc_width = document.body.clientWidth
doc_height = document.body.clientHeight
}
dx[i] += stx[i]
document.all["dot"+i].style.pixelTop = yp[i]
document.all["dot"+i].style.pixelLeft = xp[i] + am[i]*Math.sin(dx[i])
}
setTimeout("snowIE()", 10)
}
if (ns4up) {
snowNS()
} else if (ie4up) {
snowIE()
}
</SCRIPT>
</body>
</html>
记得给我加分啊
var snowsrc="images/xuehua1.gif"这句是你雪花图片的地址
