I did a couple of searches around and I found out that you can’t easily find a free and good looking scrollbar class which supports Horizontal and Vertical scrolling both at the same time! so I decided to build one 
then it turned out that it actually does even more than just scrolling horizontally and vertically!!! you can control everything also.
Here are the features of this class:
- supports horizontal and vertical scrollers individually or you can use them both at the same time
- the main class itself is extending MovieClip and you can simply add it to anywhere you’d like
- the content to be scrolled, can be anything, text, html text, an image, a video file, sprite, shape, movieclip, whatever!
- the scroll has a smooth movement and the speed is customizable
- mouse wheel is supported
- the scroller design can be easily modified for your own uses
- live and runtime scroll support (if your content extends in the runtime, the scrollbar will fix itself to the new dimensions automatically)