PUBLIC MARKS from nhoizey with tags slider & widget

Sliders are useful controls for choosing a value in a range of values. Common uses are volume controls, seekers for movie and sound files as well as color pickers. A few people have asked for an update to the old Slidebar component to make it work in Mozilla and work better in IE. But since the original control was very basic and was not very usable I decided to create a new one.