Scrolling marquee without tween

Hi ppl…

I need to make a scrolling marquee of images side by side which continuously loops. They will scroll inside a masked area. How can i do this so that i can control the scroll? ie. when i click on an image inside the scroll it will stop scrolling and then when i mouse out it resumes scrolling… would i create a movie clip with a tween or would the scroll have to be created with actionscript to allow for the other functionality?