<script language="JavaScript">
function myLoad()
{
if (document.all)
{
document.all.loading.style.visibility="hidden";
}
else
{
document.loading.visibility="hide";
}
}
</script>
<body>
<form id="form1" runat="server">
<div>
<img src="Images/ajax-loader.gif" />
<asp:GridView ID="GridView1" runat="server">
</asp:GridView>
<asp:Button ID="Button1" runat="server" Text="Button" />
</div>
</form>
</body>