var marquees;
	function Up(){
		if (!(marquees.intervalId))
			marquees.intervalId = setInterval(scrollUp,20);
		else
			alert(marquees.intervalId);
	}
	function Down(){
		if (!(marquees.intervalId))
			marquees.intervalId = setInterval(scrollDown,20);
	}
	function scrollUp(){
		marquees.scrollTop -= 2;
		if (marquees.scrollTop <= 0){
			marquees.scrollTop = 0;
			Stop();
		}
	}
	function scrollDown(){
		marquees.scrollTop += 2;
		var maxScrollTop = marquees.scrollHeight - marquees.clientHeight;
		if (marquees.scrollTop >= maxScrollTop){
			marquees.scrollTop = maxScrollTop;
			Stop();
		}
	}
	function Stop(){
		if (marquees.intervalId){
			clearInterval(marquees.intervalId);
			marquees.intervalId = 0;
		}
	}
	function Init(){
		marquees = document.getElementById("marquees");
		var default_product = document.getElementById("default_product");
		if (default_product)
			default_product.click();
	}