processJsonComments( {  'xml' : '<?xml version="1.0" encoding="utf-8" ?> <rss version="2.0" xml:base="http://forums.mercurynews.com/forums" xmlns:dc="http://purl.org/dc/elements/1.1/"> <channel>  <title>MercuryNews.com Forums - Comments</title>  <link>http://forums.mercurynews.com/forums</link>  <description>Comments</description>  <language>en</language> </channel> </rss> '  } );