Redactor
From LimeSurvey Manual
Benefits
- Yii 1.1 integration : http://www.yiiframework.com/extension/redactor/
- Have a plugin for image http://imperavi.com/redactor/plugins/image-manager/
- Have a plugin for files http://imperavi.com/redactor/plugins/file-manager/
- Have a plugin for placeholder : http://thezee.hu/redactor_placeholder/
- Have a plugin system