Continous Scroller
A common scroller to display images. This works on movie clips position. Movie clip(mc1) scroll by jumping new position. At some particular position the clip jumps to the starting position where it started and scrolling goes on...
1. Import a images in a separate movie clips (mc1, mc2, mc3, ....)
2. Place all the movie clips in a new movie clip(imgMC) one after other.

3. Type the below script on all the movie clips instances.
onClipEvent(enterFrame) { // movie clip enterframe event
_x=_x+2; // change position for each enterframe event
if(_x>=540){ // condition
_x=-360; // if condition true movie clip jumps to starting postion.
}
}