a markup editor with an real-time preview is a superior solution to WYSIWYG, because there is no true WYSIWYG
and AJAX preview allows us to see what is truly going to be there when we hit save
in the dgd7 project folder:
cd drupal
drush dl bueditor ajax_markup
git add sites/all/modules/bueditor sites/all/modules/ajax_markup
For the 6.x-2.x branch of BUEditor, all we need to do is change the Preview button code to js: E.prvAjax();