function jq(obj){
	return typeof(obj) == "string" ? document.getElementById(obj) : obj;
	}
	var layerHeight = 200;
	var iFrame = 1;
	var iFrequency = 50;
	var speed = 10;
	var timer;
	var n1 = jq("recently_sell_items");
	var n2 = jq("recently_sell_items_a");
	var n3 = jq("recently_sell_items_b");
	var goup = jq("goup");
	var godown = jq("godown")
	var h1 = n2.offsetHeight-layerHeight; 
	if(n2.offsetHeight >= layerHeight)
		n1.style.height = layerHeight+'px';
	else
		n1.style.height = layerHeight+'px';
		n3.innerHTML = n2.innerHTML;

	function move(){
		if(n1.scrollTop >= n2.offsetHeight)
			n1.scrollTop -= (n2.offsetHeight - iFrame);
		else        
			n1.scrollTop += iFrame;
		if(n1.scrollTop<=0) n1.scrollTop=h1-n1.scrollTop;
	}
	goup.onmousedown = function (){iFrame = +speed;return false;};
	goup.onmouseup = function(){iFrame=1};
	godown.onmousedown = function (){iFrame = -speed;return false;};
	godown.onmouseup = function(){iFrame=1};    
	timer = setInterval("move()",iFrequency);
	n1.onmouseover=function() {clearInterval(timer);}
	n1.onmouseout=function() {timer=setInterval("move()",iFrequency);iFrame=1;}