Datalist w/ scroll

I thought I had this with the following but It did not work. Is there
any way to cause the datalist to scroll or is that an impossibility.
Or does one of the other controls have capacity?

<asp:Panel id="Panel2" runat="server">
<DIV id="Layer1" style="OVERFLOW: auto">
<asp:DataList id="dlImages" Width="80px" runat="server"
RepeatColumns="3" DataKeyField="tid">
<ItemTemplate>
<asp:ImageButton id=ImageButton1 runat="server" ImageUrl='<%#
DataBinder.Eval(Container.DataItem, "iPath")%>' CommandName="select">
</asp:ImageButton>
</ItemTemplate>
</asp:DataList>
<asp:label id="details" Width="88px" runat="server" Font-Size="10px"
Font-Names="Tahoma" Visible="False"></asp:label>
</DIV>
</asp:Panel>