js动态添加Div
利用JavaScript动态添加Div的方式有很多,在这次开发中有用到,就搜集了一下比较常用的。
一、在一个Div前添加Div
- <html>
- <body>
- <div id="a">
- <div id="a1">1</div>
- <div id="a2">2</div>
- </div>
- <a href="javascript:addDiv();">test</a>
- </body>
- <script type="text/javascript">
- function addDiv(){
- var newNode=document.createElement("div");
- newNode.setAttribute("id","a3");
- var txtNode=document.createTextNode("3");
- newNode.appendChild(txtNode);
- document.getElementById("a").insertBefore(newNode,document.getElementById("a2"));
- alert(document.getElementById("a").innerHTML)
- }
- </script>
- </html>
二、动态添加Div,并在Div上添加事件
- <html>
- <body>
- <a href="javascript:aa();">text</a>
- </body>
- </html>
- <script language=javascript>
- var divId=1;
- //动态生成单纯的div
- function CreateOuterDiv()
- {
- var obj=document.createElement("div");
- obj.id="myDiv"+divId;
- divId++;
- obj.style.border="1px solid #000000";
- obj.style.height="30px";
- obj.style.width="200px";
- obj.style.filter="alpha(opacity=70)";
- obj.style.margin="10px";
- obj.style.cursor="hand";
- obj.algin="center";
- //obj.innerHTML="<a href='#"+obj.id+"'>ssssssssss</a>";
- obj.innerText="sssssss";
- document.body.appendChild(obj);
- document.getElementById(obj.id).onclick=function(){aa();};
- }
- function aa()
- {
- CreateOuterDiv();//alert();
- }
- </script>
三、动态添加Div,并删除某个Div
- <html xmlns="http://www.w3.org/1999/xhtml">
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
- <title>无标题文档</title>
- </head>
- <script type="text/javascript">
- var a=0;
- function add(){
- var o=document.getElementById("PhotoLabel");
- var div=document.createElement("div");
- div.id = div.name = "d"+ a;
- div.innerHTML=o.innerHTML.replace(/\{0\}/ig,a);
- document.getElementById("addPhotoLabel").appendChild(div);
- //document.write(document.getElementById("addPhotoLabel").innerHTML);
- alert(document.getElementById("addPhotoLabel").innerHTML);
- a++;
- }
- //window.onload = function(){add();}
- function deleteDiv(){
- var oDiv= document.getElementById("d2");
- document.getElementById("addPhotoLabel").removeChild(oDiv);
- }
- </script>
- <body>
- <div id="PhotoLabel">
- safasfdgdag
- <a>aasscc</a>
- </div>
- <div id="addPhotoLabel"></div>
- <a href="javascript:add();"><span style="font-size: 15px">增加</span></a>
- <a href="javascript:deleteDiv();"><span style="font-size: 15px">删除第二个</span></a>
- </body>
- </html>
四、弹出div
- <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
- <html xmlns="http://www.w3.org/1999/xhtml">
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
- <title>JavaScript 仿LightBox内容显示效果</title>
- </head>
- <body>
- <br /><br /><br /><br />
- <script>
- var isIE = (document.all) ? true : false;
- var isIE6 = isIE && ([/MSIE (\d)\.0/i.exec(navigator.userAgent)][0][1] == 6);
- var $ = function (id) {
- return "string" == typeof id ? document.getElementById(id) : id;
- };
- var Class = {
- create: function() {
- return function() { this.initialize.apply(this, arguments); }
- }
- }
- var Extend = function(destination, source) {
- for (var property in source) {
- destination[property] = source[property];
- }
- }
- var Bind = function(object, fun) {
- return function() {
- return fun.apply(object, arguments);
- }
- }
- var Each = function(list, fun){
- for (var i = 0, len = list.length; i < len; i++) { fun(list[i], i); }
- };
- var Contains = function(a, b){
- return a.contains ? a != b && a.contains(b) : !!(a.compareDocumentPosition(b) & 16);
- }
- var OverLay = Class.create();
- OverLay.prototype = {
- initialize: function(options) {
- this.SetOptions(options);
- this.Lay = $(this.options.Lay) || document.body.insertBefore(document.createElement("div"), document.body.childNodes[0]);
- this.Color = this.options.Color;
- this.Opacity = parseInt(this.options.Opacity);
- this.zIndex = parseInt(this.options.zIndex);
- with(this.Lay.style){ display = "none"; zIndex = this.zIndex; left = top = 0; position = "fixed"; width = height = "100%"; }
- if(isIE6){
- this.Lay.style.position = "absolute";
- //ie6设置覆盖层大小程序
- this._resize = Bind(this, function(){
- this.Lay.style.width = Math.max(document.documentElement.scrollWidth, document.documentElement.clientWidth) + "px";
- this.Lay.style.height = Math.max(document.documentElement.scrollHeight, document.documentElement.clientHeight) + "px";
- });
- //遮盖select
- this.Lay.innerHTML = '<iframe style="position:absolute;top:0;left:0;width:100%;height:100%;filter:alpha(opacity=0);"></iframe>'
- }
- },
- //设置默认属性
- SetOptions: function(options) {
- this.options = {//默认值
- Lay: null,//覆盖层对象
- Color: "#fff",//背景色
- Opacity: 50,//透明度(0-100)
- zIndex: 1000//层叠顺序
- };
- Extend(this.options, options || {});
- },
- //显示
- Show: function() {
- //兼容ie6
- if(isIE6){ this._resize(); window.attachEvent("onresize", this._resize); }
- //设置样式
- with(this.Lay.style){
- //设置透明度
- isIE ? filter = "alpha(opacity:" + this.Opacity + ")" : opacity = this.Opacity / 100;
- backgroundColor = this.Color; display = "block";
- }
- },
- //关闭
- Close: function() {
- this.Lay.style.display = "none";
- if(isIE6){ window.detachEvent("onresize", this._resize); }
- }
- };
- var LightBox = Class.create();
- LightBox.prototype = {
- initialize: function(box, options) {
- this.Box = $(box);//显示层
- this.OverLay = new OverLay(options);//覆盖层
- this.SetOptions(options);
- this.Fixed = !!this.options.Fixed;
- this.Over = !!this.options.Over;
- this.Center = !!this.options.Center;
- this.onShow = this.options.onShow;
- this.Box.style.zIndex = this.OverLay.zIndex + 1;
- this.Box.style.display = "none";
- //兼容ie6用的属性
- if(isIE6){
- this._top = this._left = 0; this._select = [];
- this._fixed = Bind(this, function(){ this.Center ? this.SetCenter() : this.SetFixed(); });
- }
- },
- //设置默认属性
- SetOptions: function(options) {
- this.options = {//默认值
- Over: true,//是否显示覆盖层
- Fixed: false,//是否固定定位
- Center: false,//是否居中
- onShow: function(){}//显示时执行
- };
- Extend(this.options, options || {});
- },
- //兼容ie6的固定定位程序
- SetFixed: function(){
- this.Box.style.top = document.documentElement.scrollTop - this._top + this.Box.offsetTop + "px";
- this.Box.style.left = document.documentElement.scrollLeft - this._left + this.Box.offsetLeft + "px";
- this._top = document.documentElement.scrollTop; this._left = document.documentElement.scrollLeft;
- },
- //兼容ie6的居中定位程序
- SetCenter: function(){
- this.Box.style.marginTop = document.documentElement.scrollTop - this.Box.offsetHeight / 2 + "px";
- this.Box.style.marginLeft = document.documentElement.scrollLeft - this.Box.offsetWidth / 2 + "px";
- },
- //显示
- Show: function(options) {
- //固定定位
- this.Box.style.position = this.Fixed && !isIE6 ? "fixed" : "absolute";
- //覆盖层
- this.Over && this.OverLay.Show();
- this.Box.style.display = "block";
- //居中
- if(this.Center){
- this.Box.style.top = this.Box.style.left = "50%";
- //设置margin
- if(this.Fixed){
- this.Box.style.marginTop = - this.Box.offsetHeight / 2 + "px";
- this.Box.style.marginLeft = - this.Box.offsetWidth / 2 + "px";
- }else{
- this.SetCenter();
- }
- }
- //兼容ie6
- if(isIE6){
- if(!this.Over){
- //没有覆盖层ie6需要把不在Box上的select隐藏
- this._select.length = 0;
- Each(document.getElementsByTagName("select"), Bind(this, function(o){
- if(!Contains(this.Box, o)){ o.style.visibility = "hidden"; this._select.push(o); }
- }))
- }
- //设置显示位置
- this.Center ? this.SetCenter() : this.Fixed && this.SetFixed();
- //设置定位
- this.Fixed && window.attachEvent("onscroll", this._fixed);
- }
- this.onShow();
- },
- //关闭
- Close: function() {
- this.Box.style.display = "none";
- this.OverLay.Close();
- if(isIE6){
- window.detachEvent("onscroll", this._fixed);
- Each(this._select, function(o){ o.style.visibility = "visible"; });
- }
- }
- };
- </script>
- <style>
- .lightbox{width:300px;background:#FFFFFF;border:1px solid #ccc;line-height:25px; top:20%; left:20%;}
- .lightbox dt{background:#f4f4f4; padding:5px;}
- </style>
- <dl id="idBox" class="lightbox">
- <dt id="idBoxHead"><b>LightBox</b> </dt>
- <dd>
- 内容显示
- <br /><br />
- <input name="" type="button" value=" 关闭 " id="idBoxCancel" />
- <br /><br />
- </dd>
- </dl>
- <div style="margin:0 auto; width:900px; height:1000px; border:1px solid #000000;">
- <input type="button" value="关闭覆盖层" id="btnOverlay" />
- <input type="button" value="黑色覆盖层" id="btnOverColor" />
- <input type="button" value="全透覆盖层" id="btnOverOpacity" />
- <input type="button" value="定位效果" id="btnFixed" />
- <input type="button" value="居中效果" id="btnCenter" />
- <br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />
- <select>
- <option>覆盖select测试</option>
- </select>
- <input name="" type="button" value=" 打开 " id="idBoxOpen" />
- </div>
- <script>
- var box = new LightBox("idBox");
- $("idBoxCancel").onclick = function(){ box.Close(); }
- $("idBoxOpen").onclick = function(){ box.Show(); }
- $("btnOverlay").onclick = function(){
- box.Close();
- if(box.Over){
- box.Over = false;
- this.value = "打开覆盖层";
- } else {
- box.Over = true;
- this.value = "关闭覆盖层";
- }
- }
- $("btnOverColor").onclick = function(){
- box.Close();
- box.Over = true;
- if(box.OverLay.Color == "#fff"){
- box.OverLay.Color = "#000";
- this.value = "白色覆盖层";
- } else {
- box.OverLay.Color = "#fff"
- this.value = "黑色覆盖层";
- }
- }
- $("btnOverOpacity").onclick = function(){
- box.Close();
- box.Over = true;
- if(box.OverLay.Opacity == 0){
- box.OverLay.Opacity = 50;
- this.value = "全透覆盖层";
- } else {
- box.OverLay.Opacity = 0;
- this.value = "半透覆盖层";
- }
- }
- $("btnFixed").onclick = function(){
- box.Close();
- if(box.Fixed){
- box.Fixed = false;
- this.value = "定位效果";
- } else {
- box.Fixed = true;
- this.value = "取消定位";
- }
- }
- $("btnCenter").onclick = function(){
- box.Close();
- if(box.Center){
- box.Center = false;
- box.Box.style.left = box.Box.style.top = "20%";
- box.Box.style.marginTop = box.Box.style.marginLeft = "0";
- this.value = "居中效果";
- } else {
- box.Center = true;
- this.value = "重新定位";
- }
- }
- </script>
- </body>
- </html>
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