quodo/jf-future — comment on commit a13f5ddc410d13bbd61b0306d2ea4c1a31d7ea39
File:  line 0
By GeraintEdwards:

overview.php is no longer used. The overview layout uses the tmpl file 'default.php'

The correct way to do this is as follows
$hrefPublish = ''.JHTML::_('image','admin/publish_x.png', '', NULL, true).'';