//specify speed of scroll (greater=faster)
var speed=5

var crossobjmain=document.getElementById("container")
var contentwidthmain=crossobjmain.offsetWidth

var crossobj=document.getElementById("content")
var contentwidth=crossobj.offsetWidth

function moveright(){
if (parseInt(crossobj.style.left)>=(contentwidth*(-1)+contentwidthmain+3))
crossobj.style.left=parseInt(crossobj.style.left)-speed+"px"

moverightvar=setTimeout("moveright()",20)
}

function moveleft(){
if (parseInt(crossobj.style.left)<=-3)
crossobj.style.left=parseInt(crossobj.style.left)+speed+"px"

moveleftvar=setTimeout("moveleft()",20)
}