var about_moveupvar
	var about_movedownvar
	
	function about_moveup(){
		var mytop = document.getElementById("about_content").style.top
		
		if (mytop == "0px") {
			
			}
		else {
		document.getElementById("about_content").style.top = parseInt(document.getElementById("about_content").style.top) + 5 + "px";
		about_moveupvar=setTimeout("about_moveup()",20)
		}
	}
	
	function about_movedown(){
		
		var crossobj=document.getElementById? document.getElementById("about_content") : document.all.content
		var contentheight=crossobj.offsetHeight
		contentheight = contentheight
		var myvar = 5 * Math.round(contentheight / 5)
		myvar = myvar - 200
		if (myvar > 0)
		myvar = "-" + myvar +"px"
		else
		myvar = 0 + "px"
		
		var mytop = document.getElementById("about_content").style.top
		
		
		if ( mytop == myvar) {
			
			}
		else {
			var mytop = document.getElementById("about_content").style.top
			document.getElementById("about_content").style.top = parseInt(document.getElementById("about_content").style.top) - 5 + "px";
			about_movedownvar=setTimeout("about_movedown()",20)
		}
	}