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)+200))
					crossobj.style.top=parseInt(crossobj.style.top)-speed
					else if (ns4&&crossobj.top>=(contentheight*(-1)+200))
					crossobj.top-=speed
					movedownvar=setTimeout("movedown()",100)
					}

					function moveup(){
					if (iens6&&parseInt(crossobj.style.top)<=0)
					crossobj.style.top=parseInt(crossobj.style.top)+speed
					else if (ns4&&crossobj.top<=0)
					crossobj.top+=speed
					moveupvar=setTimeout("moveup()",100)

					}

					function getcontent_height(){
					if (iens6)
					contentheight=crossobj.offsetHeight
					else if (ns4)
					document.nscontainer.document.nscontent.visibility="show"
					}
					window.onload=getcontent_height