<!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>aaaaa</title>
<style>
a{display:block;float:left;margin-right:8px;}
.spn{display:block;float:left;}
</style>
<script src="./jquery.js"></script>
<script type="text/javascript">
$(function(){
var $a=$("a");
var l=$a.length;
var s=11;//能出现个数
var h=Number(l)-Number(1);//索引上限
if(l>20){
$a.slice(s,h).hide();//初始化隐藏
$a.filter(":hidden").prev("a:visible").after("<span class='spn'>…</span>");
$a.click(function(){
var x=$(this).text();
var up=Number(x)+Number(5);
var down=Number(x)-Number(5);
//var y=Number(x)+Number(5);
//alert($("a:eq(z)").text());
$("span").remove();
$a.filter(":not(:last):not(:first)").hide().filter(function(){
range=$(this).text();
if(range>down && range<up) return true;
}).show();
$a.filter(":hidden").prev("a:visible").after("<span class='spn'>…</span>");
return false;
});
}
});
</script>
</head>
<body>
<a href="http://localhost/?tag=1">0</a>
<a href="http://localhost/?tag=2">1</a>
<a href="http://localhost/?tag=3">2</a>
<a href="http://localhost/?tag=4">3</a>
<a href="http://localhost/?tag=5">4</a>
<a href="http://localhost/?tag=6">5</a>
<a href="http://localhost/?tag=7">6</a>
<a href="http://localhost/?tag=8">7</a>
<a href="http://localhost/?tag=9">8</a>
<a href="http://localhost/?tag=10">9</a>
<a href="http://localhost/?tag=11">10</a>
<a href="http://localhost/?tag=12">11</a>
<a href="http://localhost/?tag=13">12</a>
<a href="http://localhost/?tag=14">13</a>
<a href="http://localhost/?tag=15">14</a>
<a href="http://localhost/?tag=16">15</a>
<a href="http://localhost/?tag=17">16</a>
<a href="http://localhost/?tag=18">17</a>
<a href="http://localhost/?tag=19">18</a>
<a href="http://localhost/?tag=20">19</a>
<a href="http://localhost/?tag=21">20</a>
<a href="http://localhost/?tag=22">21</a>
<a href="http://localhost/?tag=23">22</a>
<a href="http://localhost/?tag=24">23</a>
<a href="http://localhost/?tag=25">24</a>
<a href="http://localhost/?tag=26">25</a>
<a href="http://localhost/?tag=27">26</a>
<a href="http://localhost/?tag=28">27</a>
<a href="http://localhost/?tag=29">28</a>
<a href="http://localhost/?tag=30">29</a>
<div class="txt"></div> </body>
</html>