iens6=document.all||document.getElementById;
//ns4=document.layers;

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


function movedown()
{
	if (iens6&&parseInt(crossobj.style.top)>=(contentheight*(-1)+100))
	{
		crossobj.style.top=parseInt(crossobj.style.top)-speed;
	}

	crossobj.top-=speed;
	movedownvar=setTimeout("movedown()",20);
}

function moveup()
{
	if (iens6&&parseInt(crossobj.style.top)<=0)
	{
		crossobj.style.top=parseInt(crossobj.style.top)+speed;
	}

	crossobj.top+=speed;

	moveupvar=setTimeout("moveup()",20)
}

function getcontent_height()
{
	crossobj=document.getElementById? document.getElementById("content") : document.all.content;
	contentheight=crossobj.offsetHeight;
}