http://www.mediawiki.org/wiki/Manual:How_to_debug
http://www.mediawiki.org/wiki/Manual:How_to_debug
http://igstan.ro/posts/2009-01-11-ajax-file-upload-with-pure-javascript.html
http://www.mediawiki.org/wiki/Manual:How_to_debug
http://igstan.ro/posts/2009-01-11-ajax-file-upload-with-pure-javascript.html