if (iens6){
document.write('</div></div>')
var crossobj=document.getElementById? document.getElementById("content") : document.all.content
var contentheight=crossobj.offsetHeight
}
else if (ns4){
var crossobj=document.nscontainer.document.nscontent
var contentheight=crossobj.clip.height

}

function movedown(){
if (window.moveupvar) clearTimeout(moveupvar)
if (iens6&&parseInt(crossobj.style.top)>=(contentheight*(-1)+480))
crossobj.style.top=parseInt(crossobj.style.top)-speed+"px"
else if (ns4&&crossobj.top>=(contentheight*(-1)+480))
crossobj.top-=speed
movedownvar=setTimeout("movedown()",20)
}

function moveup(){
if (window.movedownvar) clearTimeout(movedownvar)
if (iens6&&parseInt(crossobj.style.top)<=0)
crossobj.style.top=parseInt(crossobj.style.top)+speed+"px"
else if (ns4&&crossobj.top<=0)
	crossobj.top += speed
	moveupvar=setTimeout("moveup()",20)
}

function stopscroll(){
if (window.moveupvar) clearTimeout(moveupvar)
if (window.movedownvar) clearTimeout(movedownvar)
}

function movetop(){
stopscroll()
if (iens6)
crossobj.style.top=0+"px"
else if (ns4)
crossobj.top=0
}

function gotop(){
	if (iens6&&parseInt(crossobj.style.top)<0)
	crossobj.style.top="0px";
	else if (ns4&&crossobj.top<=0)
		crossobj.top ="0"
}

function getcontent_height(){
	if (iens6)
		contentheight=crossobj.offsetHeight
	else if (ns4)
		document.nscontainer.document.nscontent.visibility="show"
	
	checkScrolls();
	if(document.getElementById("move_up")){
		if(checkScrolls()){
			document.getElementById("move_up").style.display = '';
			document.getElementById("move_down").style.display = '';
		}else{
			document.getElementById("move_up").style.display = 'none';
			document.getElementById("move_down").style.display = 'none';
		}
	}
}
function checkScrolls(){
	myVal = parseInt(document.getElementById("cont").style.height);
	if(myVal < contentheight)
		return true;
	else
		return false;
}

window.onload=getcontent_height