iens6=document.all||document.getElementById;

var speed=5;

if (iens6){
	var crossobj=document.getElementById? document.getElementById("content") : document.all.content;
	var contentheight=crossobj.offsetHeight;
	
}

function movedown(){
	if (iens6&&parseInt(crossobj.style.top)>=(contentheight*(-1)+344)) {
	crossobj.style.top=parseInt(crossobj.style.top)-speed+"px";
	} 
	movedownvar=setTimeout("movedown()",20);
}

function moveup(){
	if (iens6&&parseInt(crossobj.style.top)<=0) {
	crossobj.style.top=parseInt(crossobj.style.top)+speed+"px";
	} 
	moveupvar=setTimeout("moveup()",20);
}
/*
function getcontent_height(){
	if (iens6) {
	contentheight=crossobj.offsetHeight;
	}
}
window.onload=getcontent_height;
*/