.....
<div id="menu" style="DISPLAY: none">
<div id="pos" style="POSITION: absolute">
<div class="menuLinks" onmouseover="this.style.color='#663300';this.style .background='#fee3c9'" onclick="link('visualizzalog.aspx')" onmouseout="this.style.color='#fee3c9';this.style. background='#663300'">Filtro in base a selezione</div>
<div class="menuLinks" onmouseover="this.style.color='#663300';this.style .background='#fee3c9'" onclick="link('')" onmouseout="this.style.color='#fee3c9';this.style. background='#663300'">Filtro ad esclusione selezione</div>
<div class="menuLinks" onmouseover="this.style.color='#663300';this.style .background='#fee3c9'" onclick="link('')" onmouseout="this.style.color='#fee3c9';this.style. background='#663300'">Rimuovi filtro</div>
</div>
.....
<asp

ataGrid id="dgLog" runat="server" Font-Size="8pt" Width="720px" OnSortCommand="Filtra" AutoGenerateColumns="False" AllowSorting="True" AllowPaging="True" CellPadding="2" OnPageIndexChanged="saltapagina" AllowCustomPaging="True" PageSize="15">
<HeaderStyle font-size="8pt" font-bold="True"></HeaderStyle>
<PagerStyle nextpagetext="Pagina successiva" prevpagetext="Pagina precedente"></PagerStyle>
<Columns>
<asp:TemplateColumn SortExpression="Data" HeaderText="Data">
<ItemTemplate>
<%#Container.DataItem("Data")%>
</ItemTemplate>
</asp:TemplateColumn>
..........