javascript 保持滚动条位置
以下为经验证过的写法,确实没有问题.
<script language="javascript">
function GetCookie (name)
{
var arg = name + "=";
var alen = arg.length;
var clen = document.cookie.length;
var i = 0;
while (i < clen)
{
var j = i + alen;
if (document.cookie.substring(i, j) == arg)
{
return getCookieVal (j);
}
i = document.cookie.indexOf(" ", i) + 1;
if (i == 0)
{
break;
}
}
return null;
}
function getCookieVal (offset)
{
var endstr = document.cookie.indexOf (";", offset);
if (endstr == -1)
endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}
function SetCookie (name, value)
{
document.cookie = name + "=" + escape (value);
}
</script>
</HEAD>
<body bgColor="#f1f5f5" leftMargin="0" topMargin="0" rightMargin="0" MS_POSITIONING="FlowLayout" onload="document.body.scrollTop=GetCookie('posy')" onunload="SetCookie('posy',document.body.scrollTop)">
<script language="javascript">
function GetCookie (name)
{
var arg = name + "=";
var alen = arg.length;
var clen = document.cookie.length;
var i = 0;
while (i < clen)
{
var j = i + alen;
if (document.cookie.substring(i, j) == arg)
{
return getCookieVal (j);
}
i = document.cookie.indexOf(" ", i) + 1;
if (i == 0)
{
break;
}
}
return null;
}
function getCookieVal (offset)
{
var endstr = document.cookie.indexOf (";", offset);
if (endstr == -1)
endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}
function SetCookie (name, value)
{
document.cookie = name + "=" + escape (value);
}
</script>
</HEAD>
<body bgColor="#f1f5f5" leftMargin="0" topMargin="0" rightMargin="0" MS_POSITIONING="FlowLayout" onload="document.body.scrollTop=GetCookie('posy')" onunload="SetCookie('posy',document.body.scrollTop)">
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