addComment:

local (dt = date.dateToIso8601String (clock.now ()));
local (sd = dotOpmlData.prefs.subdomain);
local (url = "http://profnano.org/test/opml/comments.asp?");
local (ctext = "Leave a comment");
url = "<a href='#' onClick='comment(\"" + url + "sd=" + sd + "&dt=" + dt + "\")'>" + ctext + "</a>";
wp.insert (url)

--

opml.js:

function comment(url)
{
	window.open(url, '', 'scrollbars=yes, menubar=no, height=400, width=400, resizable=no, toolbar=no, location=no, status=no');
}