if (iens6){
	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 (iens6&&parseInt(crossobj.style.top)>=(contentheight*(-1)+50))
	crossobj.style.top=parseInt(crossobj.style.top)-speed+"px"
	else if (ns4&&crossobj.top>=(contentheight*(-1)+50))
	crossobj.top-=speed
	movedownvar=setTimeout("movedown()",80)
	}
	
	function moveup(){
	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()",80)
	
	}
	
	function getcontent_height(){
	if (iens6)
	contentheight=crossobj.offsetHeight
	else if (ns4)
	document.nscontainer.document.nscontent.visibility="show"
	}
	window.onload=getcontent_height