Example
----------------------
var pg = new showPages('pg');
pg.pageCount = 12; //定义总页数(必要)
pg.argName = 'p';    //定义参数名(可选,缺省为page)
pg.printHtml();        //显示页数

Supported in Internet Explorer, Mozilla Firefox
*/

function showPages(name) { //初始化属性
 this.name = name;      //对象名称
 this.page = 1;         //当前页数
 this.pageCount = 1;    //总页数
 this.argName = 'page'; //参数名
 this.showTimes = 1;    //打印次数
}

showPages.prototype.getPage = function(){ //丛url获得当前页数,如果变量重复只获取最后一个
 var args = location.search;
 var reg = new RegExp('[\?&]?' + this.argName + '=([^&]*)[&$]?', 'gi');
 var chk = args.match(reg);
 this.page = RegExp.$1;
}
showPages.prototype.checkPages = function(){ //进行当前页数和总页数的验证
 if (isNaN(parseInt(this.page))) this.page = 1;
 if (isNaN(parseInt(this.pageCount))) this.pageCount = 1;
 if (this.page < 1) this.page = 1;
 if (this.pageCount < 1) this.pageCount = 1;
 if (this.page > this.pageCount) this.page = this.pageCount;
 this.page = parseInt(this.page);
 this.pageCount = parseInt(this.pageCount);
}
showPages.prototype.createHtml = function(mode){ //生成html代码
 var strHtml = '', prevPage = this.page - 1, nextPage = this.page + 1;
 if (mode == '' || typeof(mode) == 'undefined') mode = 0;
 switch (mode) {
  case 0 : //模式1 (页数,首页,前页,后页,尾页)
   strHtml += '<span class="count">Pages: ' + this.page + ' / ' + this.pageCount + '</span>';
   strHtml += '<span class="number">';
   if (prevPage < 1) {
    strHtml += '<span title="First Page">&#171;</span>';
    strHtml += '<span title="Prev Page">&#139;</span>';
   } else {
    strHtml += '<span title="First Page"><a href="javascript:' + this.name + '.toPage(1);">&#171;</a></span>';
    strHtml += '<span title="Prev Page"><a href="javascript:' + this.name + '.toPage(' + prevPage + ');">&#139;</a></span>';
   }
   for (var i = 1; i <= this.pageCount; i++) {
    if (i > 0) {
     if (i == this.page) {
      strHtml += '<span title="Page ' + i + '">[' + i + ']</span>';
     } else {
      strHtml += '<span title="Page ' + i + '"><a href="javascript:' + this.name + '.toPage(' + i + ');">[' + i + ']</a></span>';
     }
    }
   }
   if (nextPage > this.pageCount) {
    strHtml += '<span title="Next Page">&#155;</span>';
    strHtml += '<span title="Last Page">&#187;</span>';
   } else {
    strHtml += '<span title="Next Page"><a href="javascript:' + this.name + '.toPage(' + nextPage + ');">&#155;</a></span>';
    strHtml += '<span title="Last Page"><a href="javascript:' + this.name + '.toPage(' + this.pageCount + ');">&#187;</a></span>';
   }
   strHtml += '</span><br />';
   break;
  case 1 : //模式1 (10页缩略,首页,前页,后页,尾页)
   strHtml += '<span class="count">Pages: ' + this.page + ' / ' + this.pageCount + '</span>';
   strHtml += '<span class="number">';
   if (prevPage < 1) {
    strHtml += '<span title="First Page">&#171;</span>';
    strHtml += '<span title="Prev Page">&#139;</span>';
   } else {
    strHtml += '<span title="First Page"><a href="javascript:' + this.name + '.toPage(1);">&#171;</a></span>';
    strHtml += '<span title="Prev Page"><a href="javascript:' + this.name + '.toPage(' + prevPage + ');">&#139;</a></span>';
   }
   if (this.page % 10 ==0) {
    var startPage = this.page - 9;
   } else {
    var startPage = this.page - this.page % 10 + 1;
   }
   if (startPage > 10) strHtml += '<span title="Prev 10 Pages"><a href="javascript:' + this.name + '.toPage(' + (startPage - 1) + ');">...</a></span>';
   for (var i = startPage; i < startPage + 10; i++) {
    if (i > this.pageCount) break;
    if (i == this.page) {
     strHtml += '<span title="Page ' + i + '">[' + i + ']</span>';
    } else {
     strHtml += '<span title="Page ' + i + '"><a href="javascript:' + this.name + '.toPage(' + i + ');">[' + i + ']</a></span>';
    }
   }
   if (this.pageCount >= startPage + 10) strHtml += '<span title="Next 10 Pages"><a href="javascript:' + this.name + '.toPage(' + (startPage + 10) + ');">...</a></span>';
   if (nextPage > this.pageCount) {
    strHtml += '<span title="Next Page">&#155;</span>';
    strHtml += '<span title="Last Page">&#187;</span>';
   } else {
    strHtml += '<span title="Next Page"><a href="javascript:' + this.name + '.toPage(' + nextPage + ');">&#155;</a></span>';
    strHtml += '<span title="Last Page"><a href="javascript:' + this.name + '.toPage(' + this.pageCount + ');">&#187;</a></span>';
   }
   strHtml += '</span><br />';
   break;
  case 2 : //模式2 (前后缩略,页数,首页,前页,后页,尾页)
   strHtml += '<span class="count">Pages: ' + this.page + ' / ' + this.pageCount + '</span>';
   strHtml += '<span class="number">';
   if (prevPage < 1) {
    strHtml += '<span title="First Page">&#171;</span>';
    strHtml += '<span title="Prev Page">&#139;</span>';
   } else {
    strHtml += '<span title="First Page"><a href="javascript:' + this.name + '.toPage(1);">&#171;</a></span>';
    strHtml += '<span title="Prev Page"><a href="javascript:' + this.name + '.toPage(' + prevPage + ');">&#139;</a></span>';
   }
   if (this.page != 1) strHtml += '<span title="Page 1"><a href="javascript:' + this.name + '.toPage(1);">[1]</a></span>';
   if (this.page >= 5) strHtml += '<span>...</span>';
   if (this.pageCount > this.page + 2) {
    var endPage = this.page + 2;
   } else {
    var endPage = this.pageCount;
   }
   for (var i = this.page - 2; i <= endPage; i++) {
    if (i > 0) {
     if (i

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