Datalist hyperlink border

[manikal]

I have problem with datalist control that add ugly border around my
thumbnail when I wrap hyperlink tag around that image.

Here is my code:

<asp:DataList ID="DataList1" runat="server" RepeatColumns="3"
RepeatDirection="Horizontal" CellSpacing="5" border="0">
<ItemTemplate>
<a href="#" class="noborder"
onclick="window.open('popup.aspx?img=images<%=cate gory%><%#
DataBinder.Eval(Container.DataItem, "Name") %>','nwwin',
'toolbar=0,location=0,directories=0,status=0,menub ar=no,scrollbars=yes,resizable=yes,width=1024,heig ht=768');">
<img src="<%=appPath%>/images/<%=category%>thumbnails/<%#
DataBinder.Eval(Container.DataItem, "Name") %>" /></a>
</ItemTemplate>
</asp:DataList>

Advice please,
manikal