continues looping of a background in as3

/*
copy and paste this code on the first frame of your movie and create 
need a bg movie clip put that clip in library 
*/
import flash.display.MovieClip;
import flash.events.Event;
import flash.display.Sprite;
import flash.events.MouseEvent;
var max:Number = 800;
var speed:Number = -5;

stage.frameRate = 24;
//a blank sprite thats hold the background

var BgClone:MovieClip;

//adding background movieClip;
//defaut direction
addbackground()
function addbackground()
{

//minimum 2
for (var i:Number=0; i<2; i++)
{
var Bg=new bg();
this.addChild(Bg);
Bg.x=(Bg.width/2)+Bg.width*i;
Bg.y = Bg.height/2;
Bg.addEventListener(Event.ENTER_FRAME,moveBg);
}

}
function moveBg(e:Event)
{
e.currentTarget.x +=  speed;

    if ( e.currentTarget.x<-(e.currentTarget.width/2))
{
e.currentTarget.x = 1190;
}

}