<div style="overflow: auto; height: 152px" align="left" id="dvScoll_1"&nbsp;  onscroll="javascript:setScollTop()">
www.js-code.COM
......
</div>

function setScollTop()
  {
     document.getElementById("<%=hidScrollTop.ClientID%>").value=document.getElementById("dvScoll_1").scrollTop;
  }

if (!IsPostBack)
                {
                   。。。。。
                }
                else
                {
                    //恢复滚动条位置
                    if (this.hidScrollTop.Value!="")
                    {
                        string scrollTop = this.hidScrollTop.Value;
                        string strScript="document.getElementById('dvScoll_1').scrollTop="+scrollTop;
                        RegisterScriptBlock(this.Page, strScript);
                    }
                }

 /// <summary>
    /// 注册脚本块
    /// </summary>
    public static void RegisterScriptBlock(System.Web.UI.Page page, string _ScriptString)
    {
        page.ClientScript.RegisterStartupScript(page.GetTyPE(), "scriptblock", "<script type='text/javascript'>" + _ScriptString + "</script>");
    }