方法一：
<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>
然后在页面中加上
<body onload="document.body.scrollTop=GetCookie('posy')" onunload="SetCookie('posy',document.body.scrollTop)">
方法二：
设置页面的SmartNavigation=True
