Apparently http://media.ljworld.com is scattered through the code:
simon:~/src/trunk$ grep -R "media.ljworld.com" * | grep -v ".svn"
media/js/admin/add_calendars.js: quickElement('img', cal_link, '', 'src', 'http://media.ljworld.com/img/admin/icon_calendar.gif', 'alt', 'Calendar');
media/js/admin/DateTimeShortcuts.js: quickElement('img', clock_link, '', 'src', 'http://media.ljworld.com/img/admin/icon_clock.gif', 'alt', 'Clock');
media/js/admin/DateTimeShortcuts.js: quickElement('img', cal_link, '', 'src', 'http://media.ljworld.com/img/admin/icon_calendar.gif', 'alt', 'Calendar');
media/js/SelectFilter2.js: quickElement('img', filter_p, '', 'src', 'http://media.ljworld.com/img/admin/selector-search.gif');
media/js/SelectFilter2.js: quickElement('img', selector_filter, '', 'src', 'http://media.ljworld.com/img/admin/selector-add.gif', 'alt', 'Add');
Just noting diffs to fix this are available in ticket #229.