js倒计时跳转

等待<span id="daojishi">10</span>秒后你将跳转到http://www.baidu.com

<script type="text/javascript">
  function daoshu(){
     var djs = document.getElementById("daojishi");
     if(djs.innerHTML == 0){
          window.location.href='http://www.baidu.com';
          return false;
     }
     djs.innerHTML = djs.innerHTML - 1;
}
  window.setInterval("daoshu()", 1000);
</script>