172、返回最顶部

172、返回最顶部

脚本说明:

把如下代码加入<body>区域中

<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>

 

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