注册后5秒钟跳转首页

恭喜您注册成功，5秒后跳转到首页，如果不跳转请 点击这里

恭喜您注册成功，<span id="second" style="color: red;">5</span>秒后跳转到首页，如果不跳转请<a href="www.baidu.com">点击这里</a>
		<script type="text/javascript">
			var time = 5;
			var timer;
			timer = setInterval(
				function(){
					var second = document.getElementById("second");
					if(time>=1){
						second.innerHTML = time;
						time--;
					}else{
						clearInterval(timer);
						location.href="www.baidu.com";
					}
				},
				1000
			);
		</script>