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)
			{
				/* clear all rows */
				while (tb.firstElementChild !== tb.lastElementChild)
					tb.removeChild(tb.lastElementChild);

				for (var i = 0; i < st.length; i++)
					tb.appendChild(E('<div class="tr cbi-section-table-row cbi-rowstyle-%d">'.format((i % 2) + 1), [
						E('<div class="td">', st[i].proto),
						E('<div class="td">', st[i].extport),
						E('<div class="td">', st[i].intaddr),
						E('<div class="td">', st[i].intport),
						E('<div class="td">', st[i].descr),
						E('<input class="cbi-button cbi-input-remove" type="button" value="<%:Delete%>" onclick="upnp_delete_fwd(%d)" />'.format(st[i].num))
					]));

				if (tb.firstElementChild === tb.lastElementChild)
					tb.appendChild(E('<div class="tr cbi-section-table-row"><div class="td"><em><br /><%:There are no active redirects.%></em></div></div>'));
			}
		}
	);
//]]></script>

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