luci/applications/luci-app-upnp/luasrc/view/upnp_status.htm

<script type="text/javascript">//<![CDATA[
	function upnp_delete_fwd(idx) {
		(new XHR()).post('<%=url('admin/services/upnp/delete')%>/' + idx, { token: '<%=token%>' },
			function(x)
			{
				var tb = document.getElementById('upnp_status_table');
				if (tb && (idx + 1 < tb.childNodes.length))
					tb.removeChild(tb.childNodes[idx + 1]);
			}
		);
	}

	XHR.poll(5, '<%=url('admin/services/upnp/status')%>', null,
		function(x, st)
		{
			var tb = document.getElementById('upnp_status_table');
			if (st && tb)
			{
				var rows = [];

				for (var i = 0; i < st.length; i++)
					rows.push([
						st[i].proto,
						st[i].extport,
						st[i].intaddr,
						st[i].intport,
						st[i].descr,
						E('<input class="cbi-button cbi-button-remove" type="button" value="<%:Delete%>" onclick="upnp_delete_fwd(%d)" />'.format(st[i].num))
					]);

				cbi_update_table(tb, rows, '<em><%:There are no active redirects.%></em>');
			}
		}
	);
//]]></script>

<div class="cbi-section">
	<legend><%:Active UPnP Redirects%></legend>
	<div class="cbi-section-node">
		<div class="table" id="upnp_status_table">
			<div class="tr table-titles">
				<div class="th"><%:Protocol%></div>
				<div class="th"><%:External Port%></div>
				<div class="th"><%:Client Address%></div>
				<div class="th"><%:Client Port%></div>
				<div class="th"><%:Description%></div>
				<div class="th cbi-section-actions">&#160;</div>
			</div>
			<div class="tr">
				<div class="td" colspan="5"><em><%:Collecting data...%></em></div>
			</div>
		</div>
	</div>
</div>