A slider widget can be implemented in Django.
Update: Slider widget is no longer supported as I implemented sage cells for that purpose which offers much more functionality (including sliders).
I used the following resources
- jQuery (http://jqueryui.com/demos/slider)
- Django documentation for a TinyMCE widget (https://code.djangoproject.com/wiki/CustomWidgetsTinyMCE) which requires TinyMCE (http://www.tinymce.com/download/download.php) to be installed.
- Miguel Araujo's documentation of Django Forms I: Custom fields and widgets in detail (http://tothinkornottothink.com/post/10815277049/django-forms-i-custom-fields-and-widgets-in-detail)
The problem is that these sliders work with forms only. I did not find a way to implement them into creole text to show interactive graphics. That however seems feasible by the sage cell server which is described here.