Hello, I'm looking for some assistance with some side scrolling issues I'm having with my code. This is my first time really coding so any and all help/advice would be a big help! In total I have 3 timelines running, one for pure Action script, one for my movie clips, and a final for my background(this line I have not started to work with, and am not currently concerned about).

So here is my code(its a bit messy, please forgive me):

~~~~~~~
hero.gotoAndStop('still');

var friction:Number=.9;
var speed:Number=0;
var dy:Number=0;
var gravity:Number=4;
var canjump:Boolean = false;
var Key:KeyObject = new KeyObject(stage);

stage.addEventListener(Event.ENTER_FRAME,onenter);

scrollStage();

function scrollStage():void
{
ground.x += (stage.stageWidth * .5) + hero.x;
hero.x =(stage.stageWidth * 0.5);
}

function onenter(e:Event):void{

dy+=gravity;

if(hero.y>300){
canjump=true;
}
if(Key.isDown(Key.UP) && canjump){
dy=-25;
canjump=false;
}
hero.y+=dy;

if (Key.isDown(Key.RIGHT)){
speed-=6
hero.x+=12;
hero.scaleX=1;
hero.gotoAndStop('walking');
}else if (Key.isDown(Key.LEFT)){
speed+=6
hero.x+=-12;
hero.scaleX=-1;
hero.gotoAndStop('walking');
}else {
hero.gotoAndStop('still');
}
if (speed>20){
speed=20;
}
if (speed<(-20)) {
speed=-20;
}
speed=speed*friction;
hero.x-=speed;

if (Math.abs(speed)<0.0009);{

if (! ground.hitTestPoint(hero.x,hero.y,true)) {
hero.y+=dy;
canjump=false;
}
if (dy>10) {
dy=10;
}
for (var i:int = 0; i<10; i++) {
if (ground.hitTestPoint(hero.x,hero.y,true)) {
hero.y--;
dy=0;
canjump=true;
}
}
function scrollStage():void
{
ground.x += (stage.stageWidth * 1) - hero.x;
hero.x = stage.stageWidth * 1;
}

}
}
~~~~~~~~~~~~~~~~

Again any advice on my situation would be greatly appreciated.

Thanks
-Windwarp