slider

If you are asking  adding Image Slider to your form, it is possible with JotForm.

http://widgets.jotform.com/widget/image_slider

If you are asking how adding Range Slider to your form, it is possible with JotForm.

http://widgets.jotform.com/widget/range_slider

If this doesn't answer your question, please explain further and/or add more details about it so we can assist you properly.