5秒后跳转效果(setInterval/SetTimeOut)

setInterval版

$(function () { 
setInterval(function () { 
var time = $("#time").text(); 
time = parseInt(time); 
time--; 
if (time >0) { 
$("#time").text(time); 
} else { 
window.location = $("#url").attr("href"); 
} 
}, 1000); 
});

SetTimeOut版

<script type="text/javascript"> 
window.onload = function () { 
setTimeout(changeTime, 1000); 
} 
function changeTime() { 
var time = document.getElementById("time").innerHTML; 
time = parseInt(time); 
time--; 
if (time <= 0) { 
var url = document.getElementById("url").href; 
window.location = url; 
} else { 
document.getElementById("time").innerHTML= time; 
setTimeout(changeTime, 1000); 
} 
} 
</script>

html

<span style="font-size: 18px; color: Red" id="time">5</span>秒钟以后跳转到 <a href="<%=this.url %>"