Tooltip over slider

is there any way to create a tooltip(in form of a bubble, etc…) over the pointer in a slider?

Slider provides tooltip. The sample in the toolbar package:
dhtmlxToolbar/samples/08_slider/05_tip_template.html

If you ask about mouseover title, you may use the following approach to set it:

dhxToolbar.objPull[dhxToolbar.idPrefix+itemId].obj.title = “the title here”;

Here dhxToolbar is toolbar object, itemId is slider id.