调用：
复制代码 代码如下:
var pagechange = function (index) {
            var html = pager(divid, index, 5, 1000, pagechange, { showgoto: false, showfirst: false });
        }
实现：
复制代码 代码如下:
pager = function (divpager, pageindex, pagesize, totalcount, pagechange, opt) {
var theopt = {
         barsize: 5, //分页条显示的页码数  
         bartemplate: {bar}  共{totalpage}页{totalcount}条 {goto}, //显示模板
         autohide: true, //是否自动隐藏
         showfirst: true, //在totalpage>barsize时是自动否显示第一页链接
         showlast: true, //在totalpage>barsize时是自动否显示最后一页链接
         showgoto: true, //是否显示goto
         autohidegoto: true //如果太少是否自动隐藏goto
     };
if (opt) {
         if (opt.barsize)
             theopt.barsize = opt.barsize;
         if (opt.bartemplate)
             theopt.bartemplate = opt.bartemplate;
         if (opt.autohide == false)
             theopt.autohide = false;
         if (opt.showfirst == false)
             theopt.showfirst = false;
         if (opt.showlast = false)
             theopt.showlast = false;
         if (opt.showgoto == false)
             theopt.showgoto = false;
         if (opt.autohidegoto == false)
             theopt.autohidegoto = false;
     }
     var handles = window.mypagerchanges = (function (x) { return x; } (window.mypagerchanges || {}));
if (!mypagerchanges[divpager]) mypagerchanges[divpager] = pagechange;
var startpage = 0;  //分页条起始页
     var endpage = 0;    //分页条终止页
     var showfirst = true;
     var showlast = true;
if (isnan(pageindex)) {
         pageindex = 1;
     }
     pageindex = parseint(pageindex);
     if (pageindex          pageindex = 1;
     if (pageindex * pagesize > totalcount) {
         pageindex = math.ceil(totalcount / pagesize);
     }
if (totalcount == 0) { //如果没数据
         document.getelementbyid(divpager).innerhtml = ;
         return ;
     }
var totalpage = math.ceil(totalcount / pagesize);
     if (theopt.autohide && totalcount          document.getelementbyid(divpager).innerhtml = ;
         return ;
     }
if (totalpage          startpage = 1;
         endpage = this.totalpage;
         theopt.showlast = theopt.showfirst = false;
     }
     else {
         if (pageindex              startpage = 1;
             endpage = theopt.barsize;
             theopt.showfirst = false;
         }
         else if (pageindex > (totalpage - theopt.barsize / 2)) { //最后几页时
             startpage = totalpage - theopt.barsize + 1;
             endpage = totalpage;
             theopt.showlast = false;
         }
         else {                                          //中间的页时
             startpage = pageindex - math.ceil(theopt.barsize / 2) + 1;
             endpage = pageindex + math.floor(theopt.barsize / 2);
         }
         if (totalpage              theopt.showlast = theopt.showfirst = false;
         }
     }
function _getlink(index, txt) {
         if (!txt) txt = index;
         return + txt + ;
     }
var barhtml = ;  //分页条
     barhtml += pageindex == 1 ? : _getlink(pageindex - 1, 上一页);
     if (theopt.showfirst) {
         barhtml += _getlink(1) + ...;
     }
     for (var index = startpage; index
         if (index == pageindex) {
             barhtml += + index + ;
         }
         else {
             barhtml += _getlink(index);
         }
     }
     if (theopt.showlast) {
         barhtml += ... + _getlink(totalpage);
     }
     barhtml += pageindex == totalpage ? : _getlink(pageindex + 1, 下一页);
var gotohtml = ;  //goto框及按钮
     if (theopt.showgoto && theopt.bartemplate.indexof({goto}) > 0) {
         if ((theopt.autohidegoto && totalpage > 15) || theopt.autohidegoto == false) {
             var txtid = divpager + _goindex;
             var indexval = document.getelementbyid(\ + txtid + \).value;
             gotohtml += ;
             gotohtml +=  ;
         }
     }
//替换模板
     var pagerhtml = theopt.bartemplate.replace({bar}, barhtml)
                               .replace({totalcount}, totalcount)
                               .replace({pageindex}, pageindex)
                               .replace({totalpage}, totalpage)
                               .replace({goto}, gotohtml);
document.getelementbyid(divpager).innerhtml = pagerhtml;
     return pagerhtml;
 };