Scriptaculous Slider Demo

Horizontal slider

 

Vertical slider

 

Slider with predefined values [0,50,100,150,200]

 

Slider with predefined values [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20] and interactions with div area




 

Available Options.

Another easy addition is to add a cursor: move CSS rule on the slider, the default text cursor gives less feedback as to what is going on, and this would compensate for a sometimes laggy slider. Even better, use cursor:ns-resize, or ew-resize as appropriate. I know this is obvious, but thought here was the place to do it.
Some other obvious note: put the javascript after the body. If you put the javascript right after the slider divs, it will work in firefox, but IE will start doing weird bugs.