JavaScript实现倒计时跳转页面功能【实用】

<!--这里定义倒计时开始数值--><span id="totalSecond">5</span><!--定义js变量及方法--><script language="javascript" type="text/javascript">var second = document.getElementById('totalSecond').textContent;if (navigator.appName.indexOf("Explorer") > -1){second = document.getElementById('totalSecond').innerText; } else{second = document.getElementById('totalSecond').textContent; }setInterval("redirect()", 1000); function redirect(){if (second < 0){ <!--定义倒计时后跳转页面-->location.href = 'default.aspx'; } else{if (navigator.appName.indexOf("Explorer") > -1){document.getElementById('totalSecond').innerText = second--; } else{document.getElementById('totalSecond').textContent = second--; }}}</script>