document.write('</div></div>');

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

function movedown() {
if (parseInt(crossobj.style.top) >= (contentheight * (-1) + 110)) crossobj.style.top = parseInt(crossobj.style.top) - speed;
movedownvar = setTimeout("movedown();", 40);
}

function moveup() {
if (parseInt(crossobj.style.top) <= 0) crossobj.style.top = parseInt(crossobj.style.top) + speed;
moveupvar = setTimeout("moveup();", 40);
}

function getcontent_height() {
contentheight = crossobj.offsetHeight;
}

window.onload = getcontent_height;