我的网站部分文章太长，无法分页，想做个“返回顶部的代码，请问高手该怎么操作？我找到的代码如下：
<script>
var displayed="<nobr><b>[Top]</b></nobr>"
///////////////////////////Do not edit below this line////////////
var logolink='javascript:window.scrollTo(0,0)'
var ns4=document.layers
var ie4=document.all
var ns6=document.getElementById&&!document.all
function regenerate(){
window.location.reload()
}
function regenerate2(){
if (ns4)
setTimeout("window.onresize=regenerate",400)
}
if (ie4||ns6)
document.write('<span id="logo" style="position:absolute;top:-300;z-index:100">'+displayed+'</span>')
function createtext(){ //function for NS4
staticimage=new Layer(5)
staticimage.left=-300
staticimage.document.write('<a href="'+logolink+'">'+displayed+'</a>')
staticimage.document.close()
staticimage.visibility="show"
regenerate2()
staticitns()
}
function staticit(){ //function for IE4/ NS6
var w2=ns6? pageXOffset+w : document.body.scrollLeft+w
var h2=ns6? pageYOffset+h : document.body.scrollTop+h
crosslogo.style.left=w2
crosslogo.style.top=h2
}
function staticit2(){ //function for NS4
staticimage.left=pageXOffset+window.innerWidth-staticimage.document.width-28
staticimage.top=pageYOffset+window.innerHeight-staticimage.document.height-10
}
function inserttext(){ //function for IE4/ NS6
if (ie4)
crosslogo=document.all.logo
else if (ns6)
crosslogo=document.getElementById("logo")
crosslogo.innerHTML='<a href="'+logolink+'">'+displayed+'</a>'
w=ns6? window.innerWidth-crosslogo.offsetWidth-20 : document.body.clientWidth-crosslogo.offsetWidth-10
h=ns6? window.innerHeight-crosslogo.offsetHeight-15 : document.body.clientHeight-crosslogo.offsetHeight-10
crosslogo.style.left=w
crosslogo.style.top=h
if (ie4)
window.onscroll=staticit
else if (ns6)
startstatic=setInterval("staticit()",100)
}
if (ie4||ns6){
window.onload=inserttext
window.onresize=new Function("window.location.reload()")
}
else if (ns4)
window.onload=createtext
function staticitns(){ //function for NS4
startstatic=setInterval("staticit2()",90)
}
</script>
请问高手我该把这段代码查到哪里？请高手赐教。谢谢！
