<div id="lv_content" class="unify_content" style="padding-left: 0; height: 455px;" onscroll="SetScrollPosition(this)">
</div>
<asp:HiddenField ID="HiddenFieldScroll" runat="server" />

function funSaveScroll(sender) {
//得到隱藏控件
var vScroll = $get('ctl00_ContentPlaceHolder1_hfLvScroll');
if (vScroll != null) {
//設置隱藏控件的值為scorll值
vScroll.value = sender.scrollTop;
}
}

//3、在頁面的加載完成事件中處理scorll值
var prm = Sys.WebForms.PageRequestManager.getInstance();
//設置加載完成事件
prm.add_pageLoaded(pageLoaded);

//加載完成重新設置控件的scroll值
function pageLoaded(sender, args) {
//得到要設置scroll值的控件
var vDiv = $get("lv_content");
if (vDiv != null) {
//得到隱藏控件
var vScrollValue = $get("ctl00_ContentPlaceHolder1_hfLvScroll");
//設置控件的scroll值
vDiv.scrollTop = vScrollValue.value;
}
}

/*
2)在master頁面中編寫onscroll事件，記錄其它頁面中控件的scroll值
使用方法:只要在要設置控件中設置其ID并加入onscroll事件即可。即加入 onscroll="SetScrollPosition(this)"語句
*/
function SetScrollPosition(sender) {
var scrollTemp = $get("ctl00_HiddenFieldScroll");
if (scrollTemp != null) {
//將要設置控件的ID和scroll值一起保存。中"|"分隔
scrollTemp.value = sender.id + "|" + sender.scrollTop;
}
}

//3)在頁面的加載完成事件中處理scorll值
Sys.WebForms.PageRequestManager.getInstance().add_pageLoaded(onPageLoaded);
//The Pageloaded for scroll orientation
function onPageLoaded(sender, args) {
var scrollTemp = $get("ctl00_HiddenFieldScroll");
if (scrollTemp != null) {
var scorllValue = scrollTemp.value;
if (scorllValue.length > 0) {
var target = scorllValue.split("|");
if (target.length > 1) {
var targetControlID = target[0];
var targetValue = target[1];
var targetControl = $get(targetControlID);
//得到要設置控件
if (targetControl == null || targetValue.length < 1) {
return;
}
//設置控件的scroll值
targetControl.scrollTop = targetValue;
}
}
}
}