This plugin provides an option to add MathJax script, Prettify script and a Preview for CKEditor and enables them by default on all pages.
For editor support please use this modified ckeditor.
Download the ckeditor and place inside qa-plugin/wysiwyg-editor folder. Also copy qa-question.js file inside tobecopied folder to qa-content folder replacing the file present there.
This is a beta code, use it at your own risk on a production environment.