Continue timeline after stop

hi, this is a complete newbie question. I’m trying to learn how to do more AS than tweens, so bare with me please. I have this script on my MC on frame one

onClipEvent(enterFrame) {
	speed = 17;
	this._x -= speed;

i have a MC moving across the stage, i tried stopping it with a delete onenterFrame but it will jump and not stop…how do i fix that. my second quesiton is, after i get it to stop, how do i continue the timeline and not repeat frame one, hopefully this makes sense. if anyone knows of a thread or tut, could u please direct me to it. i tried searching for it but nothing explains how to continue to another frame :h: