📄 page.js.bak
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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">«</span>';
strHtml += '<span title="Prev Page">‹</span>';
} else {
strHtml += '<span title="First Page"><a href="javascript:' + this.name + '.toPage(1);">«</a></span>';
strHtml += '<span title="Prev Page"><a href="javascript:' + this.name + '.toPage(' + prevPage + ');">‹</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">›</span>';
strHtml += '<span title="Last Page">»</span>';
} else {
strHtml += '<span title="Next Page"><a href="javascript:' + this.name + '.toPage(' + nextPage + ');">›</a></span>';
strHtml += '<span title="Last Page"><a href="javascript:' + this.name + '.toPage(' + this.pageCount + ');">»</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">«</span>';
strHtml += '<span title="Prev Page">‹</span>';
} else {
strHtml += '<span title="First Page"><a href="javascript:' + this.name + '.toPage(1);">«</a></span>';
strHtml += '<span title="Prev Page"><a href="javascript:' + this.name + '.toPage(' + prevPage + ');">‹</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">›</span>';
strHtml += '<span title="Last Page">»</span>';
} else {
strHtml += '<span title="Next Page"><a href="javascript:' + this.name + '.toPage(' + nextPage + ');">›</a></span>';
strHtml += '<span title="Last Page"><a href="javascript:' + this.name + '.toPage(' + this.pageCount + ');">»</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">«</span>';
strHtml += '<span title="Prev Page">‹</span>';
} else {
strHtml += '<span title="First Page"><a href="javascript:' + this.name + '.toPage(1);">«</a></span>';
strHtml += '<span title="Prev Page"><a href="javascript:' + this.name + '.toPage(' + prevPage + ');">‹</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 == this.page) {
strHtml += '<span title="Page ' + i + '">[' + i + ']</span>';
} else {
if (i != 1 && i != this.pageCount) {
strHtml += '<span title="Page ' + i + '"><a href="javascript:' + this.name + '.toPage(' + i + ');">[' + i + ']</a></span>';
}
}
}
}
if (this.page + 3 < this.pageCount) strHtml += '<span>...</span>';
if (this.page != this.pageCount) strHtml += '<span title="Page ' + this.pageCount + '"><a href="javascript:' + this.name + '.toPage(' + this.pageCount + ');">[' + this.pageCount + ']</a></span>';
if (nextPage > this.pageCount) {
strHtml += '<span title="Next Page">›</span>';
strHtml += '<span title="Last Page">»</span>';
} else {
strHtml += '<span title="Next Page"><a href="javascript:' + this.name + '.toPage(' + nextPage + ');">›</a></span>';
strHtml += '<span title="Last Page"><a href="javascript:' + this.name + '.toPage(' + this.pageCount + ');">»</a></span>';
}
strHtml += '</span><br />';
break;
case 3 : //模式3 (箭头样式,首页,前页,后页,尾页) (only IE)
strHtml += '<span class="count">Pages: ' + this.page + ' / ' + this.pageCount + '</span>';
strHtml += '<span class="arrow">';
if (prevPage < 1) {
strHtml += '<span title="First Page">9</span>';
strHtml += '<span title="Prev Page">7</span>';
} else {
strHtml += '<span title="First Page"><a href="javascript:' + this.name + '.toPage(1);">9</a></span>';
strHtml += '<span title="Prev Page"><a href="javascript:' + this.name + '.toPage(' + prevPage + ');">7</a></span>';
}
if (nextPage > this.pageCount) {
strHtml += '<span title="Next Page">8</span>';
strHtml += '<span title="Last Page">:</span>';
} else {
strHtml += '<span title="Next Page"><a href="javascript:' + this.name + '.toPage(' + nextPage + ');">8</a></span>';
strHtml += '<span title="Last Page"><a href="javascript:' + this.name + '.toPage(' + this.pageCount + ');">:</a></span>';
}
strHtml += '</span><br />';
break;
case 4 : //模式4 (下拉框)
if (this.pageCount < 1) {
strHtml += '<select name="toPage" disabled>';
strHtml += '<option value="0">No Pages</option>';
} else {
var chkSelect;
strHtml += '<select name="toPage" onchange="' + this.name + '.toPage(this);">';
for (var i = 1; i <= this.pageCount; i++) {
if (this.page == i) chkSelect=' selected="selected"';
else chkSelect='';
strHtml += '<option value="' + i + '"' + chkSelect + '>Pages: ' + i + ' / ' + this.pageCount + '</option>';
}
}
strHtml += '</select>';
break;
case 5 : //模式5 (输入框)
strHtml += '<span class="input">';
if (this.pageCount < 1) {
strHtml += '<input type="text" name="toPage" value="No Pages" class="itext" disabled="disabled">';
strHtml += '<input type="button" name="go" value="GO" class="ibutton" disabled="disabled"></option>';
} else {
strHtml += '<input type="text" value="Input Page:" class="ititle" readonly="readonly">';
strHtml += '<input type="text" id="pageInput' + this.showTimes + '" value="' + this.page + '" class="itext" title="Input page" onkeypress="return ' + this.name + '.formatInputPage(event);" onfocus="this.select()">';
strHtml += '<input type="text" value=" / ' + this.pageCount + '" class="icount" readonly="readonly">';
strHtml += '<input type="button" name="go" value="GO" class="ibutton" onclick="' + this.name + '.toPage(document.getElementById(\'pageInput' + this.showTimes + '\').value);"></option>';
}
strHtml += '</span>';
break;
default :
strHtml = 'Javascript showPage Error: not find mode ' + mode;
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);
showmsg(page);
}
showPages.prototype.innerPages = function(mode,obj){ //显示html代码
this.getPage();
this.checkPages();
this.showTimes += 1;obj.innerHTML="";
obj.innerHTML+='<div id="pages_' + this.name + '_' + this.showTimes + '" class="pages"></div>';
document.getElementById('pages_' + this.name + '_' + this.showTimes).innerHTML = this.createHtml(mode);
}
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;
}
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