Image in GroupHeaderTemplate

[registros]

Ive been unable to add an Image to a Group Header Template. 
Is there a restriction to the content added to that template ?

[Princy]

Hello,

Here is the sample code that I tried which worked as expected.
aspx:

<telerik:RadGrid ID="RadGrid1"  AutoGenerateColumns="true" DataSourceID="SqlDataSource1"  runat="server">
 <MasterTableView>
   <GroupHeaderTemplate>
     <asp:Image ID="img" runat="server" ImageUrl="~/Images/img.gif" />
   </GroupHeaderTemplate>
 </MasterTableView>
</telerik:RadGrid>

Thanks,
Princy.