Actionscript 3.0 :: Make A Paralax Scrolling Page?

I had posted a post earlyer asking how to make this, this is just clarifying things. So to start off one question was, what do i mean by scroll box, the slider bar like the thing to your right that you can grab and scroll down to see the content on the bottom of your page. and secondly There is no better way for to explain what a paralax scroller is than to show you so bellow is a link to a website that uses it. Now keep in mind what i am trying to do is much much smaller this is an entire website, all i am trying to do is the content on one page. By making it scroll to  the right as it is scrolled down and have content on the stage to the right. i appalogize for not explaining myself earlyer hope this helps to explain what i am trying to do.[URL]..

is an advanced thing to do and i just want to get the basic structure down before tackling more advanced things. but what i am trying to do though is as the stage scrolls sideways (rather than verticle like on the web page linked here) to show the extended stage off the the right. Content that was hidden in the bottom slides up to be shown in a tween animation only frame by frame, and what I mean by frame by frame is so if I scoll on the linked page notice how when you see a new picture and the car is blowing up in size, now if you stop scrolling that action will freeze leaving you at exactly the place where you stopped and this is not a normal motion tween ( the site is not a motion tween at all being built in html 5 and not flash) but i have to think there is a way off getting this done like perhapps a Mouse Event listening for a scroll to play a tween animation or even a frame by frame animation and when the mouse is not scrolling the tween or frame by frame stops. and does not keep playing the time line untill it reaches a stop(); function.