www.gusucode.com > 25175 学生同学录管理系统 2007 build 1231D源码程序 > admin/inc/showpage.js
function showPages(name,totalput,MaxPerPage) { //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 this.totalput = 1; //总条数 this.MaxPerPage = 1; //每页条数 } 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,nextbigPage = this.page + 5,prevbigPage = this.page - 5; if (mode == '' || typeof(mode) == 'undefined') mode = 0; switch (mode) { case 2 : //模式2 (前后缩略,页数,首页,前页,后页,尾页)共 57 strHtml += '<span class="pinfos">共 ' + this.totalput + ' 条记录 '; strHtml += '' + this.MaxPerPage + ' 条记录/页</span>'; strHtml += '<span class="number">'; strHtml += '<span class="nones">页次: ' + this.page + ' / ' + this.pageCount + '</span>'; if (prevPage < 1) { strHtml += '<span title="第一页" class="nones">«</span>'; strHtml += '<span title="上五页" class="nones">‹</span>'; } else { strHtml += '<span title="第一页"><a href="javascript:' + this.name + '.toPage(1);">«</a></span>'; strHtml += '<span title="上五页"><a href="javascript:' + this.name + '.toPage(' + prevbigPage + ');">‹</a></span>'; } //if (this.page != 1) strHtml += '<span title="第 1 页"><a href="javascript:' + this.name + '.toPage(1);">1</a></span>'; //if (this.page >= 5) strHtml += '<span class="lines">...</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 == this.page) { strHtml += '<span title="当前第 ' + i + ' 页" class="trues">' + i + '</span>'; } else { if ( i != this.pageCount) { strHtml += '<span title="第 ' + i + ' 页"><a href="javascript:' + this.name + '.toPage(' + i + ');">' + i + '</a></span>'; } } } } //if (this.page + 5 < this.pageCount) strHtml += '<span class="lines"></span>'; //if (this.page != this.pageCount) strHtml += '<span title="第 ' + this.pageCount + ' 页"><a href="javascript:' + this.name + '.toPage(' + this.pageCount + ');">' + this.pageCount + '</a></span>'; if (nextPage > this.pageCount) { strHtml += '<span title="下五页" class="nones">›</span>'; strHtml += '<span title="最后一页" class="nones">»</span>'; } else { strHtml += '<span title="下五页"><a href="javascript:' + this.name + '.toPage(' + nextbigPage + ');">›</a></span>'; strHtml += '<span title="最后一页"><a href="javascript:' + this.name + '.toPage(' + this.pageCount + ');">»</a></span>'; } strHtml += '</span><br>'; break; } return strHtml; } showPages.prototype.createUrl = function (page) { //生成页面跳转url if (isNaN(parseInt(page))) page = 1; if (page < 1) page = 1; if (page > this.pageCount) page = this.pageCount; var url = location.protocol + '//' + location.host + location.pathname; var args = location.search; var reg = new RegExp('([\?&]?)' + this.argName + '=[^&]*[&$]?', 'gi'); args = args.replace(reg,'$1'); if (args == '' || args == null) { args += '?' + this.argName + '=' + page; } else if (args.substr(args.length - 1,1) == '?' || args.substr(args.length - 1,1) == '&') { args += this.argName + '=' + page; } else { args += '&' + this.argName + '=' + page; } return url + args; } showPages.prototype.toPage = function(page){ //页面跳转 var turnTo = 1; if (typeof(page) == 'object') { turnTo = page.options[page.selectedIndex].value; } else { turnTo = page; } self.location.href = this.createUrl(turnTo); } showPages.prototype.printHtml = function(mode){ //显示html代码 this.getPage(); this.checkPages(); this.showTimes += 1; document.write('<div id="pages_' + this.name + '_' + this.showTimes + '" class="pages"></div>'); document.getElementById('pages_' + this.name + '_' + this.showTimes).innerHTML = this.createHtml(mode); } showPages.prototype.formatInputPage = function(e){ //限定输入页数格式 var ie = navigator.appName=="Microsoft Internet Explorer"?true:false; if(!ie) var key = e.which; else var key = event.keyCode; if (key == 8 || key == 46 || (key >= 48 && key <= 57)) return true; return false; }