                        课程
                    
                        /前端开发
                        
                            /JavaScript
                        
                        /倒计时效果

Uncaught RangeError: Maximum call stack size exceeded？what?

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">

	<head>
		<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
		<title>团购——限时抢</title>
		<link rel="stylesheet" href="style.css" />
	</head>

	<body>
		<div class="content3">
			<div class="time">还剩 <span id="LeftTime"></span></div>
		</div>
		<script>
			window.onload = function() {
				ftime();
			}

			function ftime() {
				var endtime = new Date('2016/07/09,12:20:12');
				var nowtime = new Date();
				var lefttime = parseInt((endtime.getTime() - nowtime.getTime()) / 1000);
				//alert(lefttime);
				d = parseInt(lefttime / 3600 / 24);
				h = parseInt((lefttime / 3600) % 24);
				m = parseInt((lefttime / 60) % 60);
				s = parseInt(lefttime % 60);
				document.getElementById("LeftTime").innerHTML = d + "天" + h + "小时" + m + "分" + s + "秒";
				if (lefttime <= 0) {
					document.getElementById("LeftTime").innerHTML = "团购已结束";
					clearInterval(sh);
				}
				var sh;
				sh=setTimeout(ftime(),500);
			}
		</script>
	</body>

</html>