[Check_mk (english)] Nagvis maps with hover graphs for hosts pings and interface graphs

Hi
Is there any way to build a nagvis hover template which will work for both the host ping graph as well as a service/interface graph to show upon hovering over a device in Nagvis? Right now we use;

    <!-- END service -->
    <tr><td class="label"></td><td><img src=../../../pnp4nagios/image?host=[pnp_hostname]&srv=[pnp_service_description]&display=image&view=0&h=100&w=400></td></tr>
    <!-- BEGIN childs -->

And it gets us the interface/service graphs, but shows a broken image icon for host ping graphs...any thoughts on how we can make this work for both?

Thanks

Jason