一个比较轻巧好用的js分页插件，可ajax可url

var pageNav = pageNav || {};

pageNav.fn = null;

pageNav.pre = "pre";

pageNav.next = "next";

pageNav.nav = function (a, b) {

    if (1 >= b)return this.pn = this.p = 1, this.pHtml2(1);

    b < a && (a = b);

    var c = "";

    1 >= a ? a = 1 : (c += this.pHtml(a - 1, b, pageNav.pre), c += this.pHtml(1, b, "1"));

    this.p = a;

    this.pn = b;

    var d = 2, e = 9 > b ? b : 9;

    7 <= a && (c += "...", d = a - 4, e = a + 4, e = b < e ? b : e);

    for (; d < a; d++)c += this.pHtml(d, b);

    c += this.pHtml2(a);

    for (d = a + 1; d <= e; d++)c += this.pHtml(d, b);

    e < b && (c = c + "..." + this.pHtml(b, b));

    a < b && (c += this.pHtml(a + 1, b, pageNav.next));

    return c

};

pageNav.pHtml = function (a, b, c) {

    return" <a href='javascript:pageNav.go(" + a + "," + b + ");' class='pageNum'>" + (c || a) + "</a> "

};

pageNav.pHtml2 = function (a) {

    return" <span class='cPageNum'>" + a + "</span> "

};

pageNav.go = function (a, b) {

    document.getElementById("pageNav").innerHTML = this.nav(a, b);

    null != this.fn && this.fn(this.p, this.pn)

};

/*

 <style>

 .pageNum{border: 1px solid #999;padding:2px 8px;display: inline-block;}

 .cPageNum{font-weight: bold;padding:2px 5px;}

 #pageNav a:hover{text-decoration:none;background: #fff4d8; }

 </style>

 * //$(function(){ //for jquery

 window.onload = (function(){

 //optional set

 pageNav.pre="PRE3";

 pageNav.next="NEXT";

 //  p:current page number.

 //  pn: page sum.

 pageNav.fn = function(p,pn){

 document.getElementById("test").innerHTML ="Page:"+p+" of "+pn + " pages.";

 //$("#test").text("Page:"+p+" of "+pn + " pages."); //for jquery

 };

 //goto the page 3 of 33.

 pageNav.go(3,53);

 });*/