jQuery实现的定时自动切换tab效果
Tab标签式选项卡内容切换是比较常见的网页效果，这种方式能节约网页篇幅。我们常见的是用户点击或鼠标移至触发实现切换，而本文实例讲述的则是基于jQuery实现的定时自动切换tab效果。现在将实例代码分享给大家供大家参考，具体代码如下：
<!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>jQuery实现的tab标签自动切换效果</title>
<style type="text/css">
* {
margin:0;
padding:0;
}
dl {
margin:10px auto;
width:500px;
line-height:24px;
border-left:1px solid #dcdcdc;
}
dt.active {
border-bottom:1px solid #fff;
position:relative;
}
dt {
padding:0 10px;
float:left;
border:1px solid #dcdcdc;
border-left:0;
cursor:pointer;
margin-bottom:-1px;
}
dd {
clear:both;
width:100%;
border-left:0;
border:1px solid #dcdcdc;
border-left:0;
display:none;
}
</style>
</head>
<body>
<dl>
<dt>nav1</dt>
<dt>nav2</dt>
<dt>nav3</dt>
<dd>1111111111111111111111</dd>
<dd> 2222222222222222222222</dd>
<dd> 3333333333333333333333</dd>
</dl>
<script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$('dt:first').addClass('active');
$('dd:first').css('display','block');
autoroll();
hookThumb();
});
var i=-1; //第i+1个tab开始
var offset = 2500; //轮换时间
var timer = null;
function autoroll(){
n = $('dt').length-1;
i++;
if(i > n){
i = 0;
}
slide(i);
timer = window.setTimeout(autoroll, offset);
}
function slide(i){
$('dt').eq(i).addClass('active').siblings().removeClass('active');
$('dd').eq(i).css('display','block').siblings('dd').css('display','none');
}
function hookThumb(){
$('dt').hover(
function () {
if (timer) {
clearTimeout(timer);
i = $(this).prevAll().length;
slide(i);
}
},
function () {
timer = window.setTimeout(autoroll, offset);
this.blur();
return false;
}
);
}
</script>
</body>
</html>
