DataList做无间隔滚动

<form id="Form1" method="post" runat="server">
            <TABLE cellSpacing="0" cellPadding="0" width="464" align="center" border="0" style="Z-INDEX: 101; LEFT: 88px; POSITION: absolute; TOP: 64px">
                <TR>
                    <TD>
                        <DIV id="demo" style="OVERFLOW: hidden; WIDTH: 100%; COLOR: #ffffff">
                            <TABLE cellSpacing="0" cellPadding="0" align="left" border="0" cellspace="0">
                                <TBODY>
                                    <TR>
                                        <TD id="demo1" vAlign="top">
                                            <asp:DataList id="DataList1" runat="server" RepeatDirection="Horizontal" Width="464px">
                                                <ItemTemplate>
                                                    <div align="center">
                                                        <%...# DataBinder.Eval(Container.DataItem,"uname")%>
                                                    </div>
                                                </ItemTemplate>
                                            </asp:DataList>
                                        </TD>
                                        <TD id="demo2" vAlign="top">
                                        </TD>
                                    </TR>
                                </TBODY>
                            </TABLE>
                        </DIV>
                        <SCRIPT>...
                                        var speed3=25//速度数值越大速度越慢
                                        demo2.innerHTML=demo1.innerHTML
                                        function Marquee()...{
                                        if(demo2.offsetWidth-demo.scrollLeft<=0)
                                        demo.scrollLeft-=demo1.offsetWidth
                                        else...{
                                        demo.scrollLeft++
                                        }
                                        }
                                        var MyMar=setInterval(Marquee,speed3)
                                        demo.onmouseover=function() ...{clearInterval(MyMar)}
                                        demo.onmouseout=function() ...{MyMar=setInterval(Marquee,speed3)}
                        </SCRIPT>
                    </TD>
                </TR>
            </TABLE>
            </TD></TR></TABLE>
        </form>

 后台绑定 DataList