HTML&JS&DOM题目和代码

1.注册 HTML { <!--填写内容:用户名、密码、重复密码、省份(下拉列表)、性别(男、女、保密三个Radio)、职业(学生、公司职员、其他三个Radio)、爱好(登山、篮球、足球、读书、游泳五个CheckBox)。使用label来写修饰文本。 --> ( <html>    <head>    <title>注册</title>    </head >    <body>       <form action="登录.htm" mothod="get">      <table>      <tr>         <td>用户名:</td>      <td>          <input type="text">      </td>      </tr>      <tr>         <td>密码:</td>      <td>          <input type="password">      </td>      </tr>       <tr>         <td>重复密码:</td>      <td>          <input type="password">      </td>      </tr>       <tr>         <td>省份:</td>      <td>          <select>          <option  value="js" selected="selected">江苏省</option>       <option  value="bj">北京市</option>       <option  value="sh">上海市</option>       <option  value="gz">广州省</option>          <option  value="tw">台湾省</option>       </select>      </td>      </tr>       <tr>         <td>性别:</td>      <td>          <input type="radio" name="sex" checked="checked" >男       <input type="radio" name="sex"  >女       <input type="radio" name="sex"  >保密      </td>      </tr>       <tr>         <td>职业:</td>      <td>          <input type="radio" name="job" checked="checked" >学生       <input type="radio" name="job"  >公司职员       <input type="radio" name="job"  >其他      </td>      </tr>            <tr>     <td>爱好:</td>     <td>      <input id="chk1" type="checkbox" value="ds" ><label for="chk1" accesskey="s">登山</label>      <input id="chk2" type="checkbox" value="lq" ><label for="chk2" accesskey="s">篮球</label>      <input id="chk3" type="checkbox" value="zq" ><label for="chk3" accesskey="s">足球</label>      <input id="chk4" type="checkbox" value="ds" ><label for="chk4" accesskey="s">读书</label>      <input id="chk5" type="checkbox" value="yy" ><label for="chk5" accesskey="s">游泳</label>     </td>    </tr>      <tr>           <td colspan="2">         <input type="submit" value="提交"/>     </td>      </tr>        </table>    </form>    <body> </html>

} 2.登录HTML { <!--练习1:实现登录界面,有用户名、密码、验证码(使用普通图片代替)、“记住密码”复选框、登录按钮、重置按钮。使用Table进行布局。使用label来写修饰文本。--> <html>     <head>      <title>登录页面</title>  </head>  <body>  <form action="123.htm" mothod="get">     <h3> 用户登录 </h3>     <table>         <tr>         <td>用户名:</td>      <td>          <input type="text">      </td>      </tr>       <tr>         <td>密码:</td>      <td>          <input type="password" size="21" >      </td>      </tr>       <tr>      <td>          <input type="checkbox" size="21" checked="checked" value="pwd" > 记住密码      </td>      </tr>       <tr>         <td>验证码:</td>      <td>          <input type="text">      </td>      <td>         <image src="123.png"></image>      </td>      </tr>        <tr>      <td colspan="2">          <input type="submit" value="登录" >       <input type="reset" value="重置" >      </td>      </tr>     </table>     </form>  </body> </html> } 3.协议 { <!--第一个页面是协议显示页面,点击“我同意”超链接进入第二个注册页面, --> ( <html>    <head>    <title>协议</title>    </head >    <body>       <form action="注册.htm" mothod="get">      <table>       <tr>     <td>       <textarea rows="20" cols="100">asdfasfd4125325687236587267856252asdfasfd4125325687236587267856252asdfasfd4125325687236587267856252asdfasfd4125325687236587267856252asdfasfd4125325687236587267856252asdfasfd4125325687236587267856252asdfasfd4125325687236587267856252asdfasfd4125325687236587267856252</textarea>     </td>    </tr>     <tr>      <td>          <input type="checkbox"  value="pwd" > 我已阅读以上协议      </td>      </tr>    <tr>       <td>         <input type="submit" value="我同意">       </td>    </tr>   </table>    </form>    <body> </html> } 4.表单练习 { <html>     <head>       <title>    歌曲列表       </title>  </head>  <body >       <ui>       <li>歌曲2</li>    <li>歌曲3</li>    <li>歌曲4</li>    <li>歌曲5</li>    <li>歌曲6</li>    </ui>    <ol type=A>       <li>歌曲2</li>    <li>歌曲3</li>    <li>歌曲4</li>    <li>歌曲5</li>    <li>歌曲6</li>    </ol>       <table border="1px" width="300px" height="50px">       <tr>    <th  colspan="3"> 学生成绩表</th>       </tr>    <tr>    <th>数学</th>    <th>语文</th>    <th>英语</th>    </tr>    <tr>    <td>95</td>    <td>98</td>    <td>89</td>    </tr>    </table>       <hr color="yellow" >        <table border="1px" width="300px" height="50PX">       <tr>    <th  colspan="3"> 学生基本状况</th>       </tr>    <tr>    <th>姓名</th>    <th>性别</th>    <th>专业</th>    </tr>    <tr>    <td>刘备</td>    <td>男</td>    <td rowspan="3">计算机</td>    </tr>    <tr>    <td>孙尚香</td>    <td>女</td>    </tr>    <tr>    <td>诸葛亮</td>    <td>男</td>    </tr>    </table>  </body> </html> } 5.表格美化 { <body>     <h3>         注册页面</h3>     <form action="06-table.html" method="get">     <table id="tb" border="1px" cellspacing="0px" cellpadding="5px">         <tr>             <td class="right">                 用户名:             </td>             <td>                 <input class="cls" type="text" size="20" value="" />             </td>         </tr>         <tr>             <td class="right">                 <label  for="txtPwd" accesskey="f">                     密码:</label>             </td>             <td>                 <input id="txtPwd" type="password" class="cls">             </td>         </tr>         <tr>             <td class="right">                 确认密码:             </td>             <td>                 <input type="password" class="cls">             </td>         </tr>         <tr>             <td class="right">                 性别:             </td>             <td>                 <input type="radio" name="sex" value="male" checked="checked">男                 <input type="radio" name="sex" value="female">女                 <input type="radio" name="sex" value="unknow">未知             </td>         </tr>         <tr>             <td class="right">                 爱好:             </td>             <td>                 <input id="chk0" type="checkbox" value="cf" checked="checked">吃饭                 <input id="chk1" type="checkbox" value="sj" checked="checked"><label for="chk1" accesskey="s">睡觉</label>                 <input type="checkbox" value="ddd" checked="checked">打豆豆             </td>         </tr>         <tr>             <td class="right">                 地区:             </td>             <td>                 <select class="cls">                     <option value="hb">河北省</option>                     <option value="hn">河南省</option>                     <option selected="selected">山东省</option>                     <option>四川省</option>                 </select>             </td>         </tr>         <tr>             <td class="right">                 备注:             </td>             <td>                 <textarea rows="15" cols="30">asdfasfd</textarea>             </td>         </tr>         <tr>             <td colspan="2" class="center">                 <input type="submit" value="注册">                 <input type="reset" value="重置">             </td>         </tr>     </table>     </form> } 6.横向菜单 { <html xmlns="http://www.w3.org/1999/xhtml"> <head>     <title></title>     <style type="text/css">          #menu         {             list-style-type:none;                    }         #menu li         {              width:80px;              margin-left:10px;              text-align:center;              float:left;              background-color:Gray;         }         .div         {             width:200px;             height:200px;             background-color:Red;             margin-bottom:10px;             float:left;             margin-left:10px;         }         #d1         {             width:650px;             height:500px;             background-color:Yellow;         }     </style> </head> <body>         <ul id="menu">             <li>                 文&nbsp;&nbsp;&nbsp;&nbsp;学             </li>             <li>                 历&nbsp;&nbsp;&nbsp;&nbsp;史             </li>             <li>                 程&nbsp;&nbsp;&nbsp;&nbsp;序             </li>             <li>                 小&nbsp;&nbsp;&nbsp;&nbsp;说             </li>             <li>                 成&nbsp;&nbsp;&nbsp;&nbsp;人             </li>         </ul>         <br />         <br />         <div id="d1">              <div class="div">             </div>             <div class="div">             </div>             <div class="div">             </div>         </div>        <br style="clear:left" />         <p>ppp</p> </body> </html> }  7.DIV+CSS布局 { <head>     <title></title>     <style type="text/css">         *         {             margin:0px;             padding:0px;         }         #wrap         {             width:90%;             height:800px;             background-color:blue;             margin:0px auto;         }                 #wrap #header         {             width:100%;             height:150px;             background-color:Yellow;         }                 #wrap #main #nav         {             width:20%;             height:500px;             background-color:Black;             float:left;         }                  #wrap #main #content         {             width:80%;             height:500px;             background-color:Green;             float:left;         }                  #wrap #footer          {              height:150px;              width:100%;              background-color:Red;          }     </style> </head> <body>     <div id="wrap">         <div id="header">123</div>

        <div id="main">             <div id="nav">123</div>             <div id="content">123</div>         </div>         <div style="clear:left"></div>         <div id="footer">123</div>     </div> </body> } 8.JS练习题 { (1)//求一个数组中的最大值。定义成函数。         var arr = [2, 6, 1, 43, 6, 9];         function getMax(arr) {             var max = arr[0];             for (var i = 1; i < arr.length; i++) {                 if (max < arr[i]) {                     max = arr[i];                 }             }             return max;         }         alert(getMax(arr)); (2)//将一个字符串数组输出为|分割的形式,比如“梅西|卡卡|郑大世”。不要使用JavaScript中的Join函数。arr1.join("|")将数组用分隔符连接成一个字符串。         function myJoin(arr, sep) {             var str = arr[0];             //判断参数是否赋值             if (!sep) {                 sep = ","             }             for (var i = 1; i < arr.length; i++) {                 str += sep + arr[i] ;             }             return str;         }

        var arr = ["老杨", "老苏", "老马"];         alert(myJoin(arr,"|")); (3)//将一个字符串数组的元素的顺序进行反转。{"3","a","8","haha"} {"haha","8","a","3"}。不要使用JavaScript中的反转函数。提示:第i个和第length-i-1个进行交换。定义成函数。Myreverse.数组同样是传递引用         var arr = ["a","b","c","d","e"]         function myReverse(arr) {             for (var i = 0; i < arr.length/2; i++) {                 var tmp = arr[i];                 arr[i] = arr[arr.length - 1 - i];                 arr[arr.length - 1 - i] = tmp;             }         } } 9.Json练习 {         var json = { "class1":                 [                     { "name": "张三", "age": 18, "sex": "男" },                     { "name": "小猫", "age": 19, "sex": "男" },                     { "name": "小狗", "age": 20, "sex": "男" }                 ],             "class2":                 [                     { "name": "abc", "age": 18, "sex": "男" },                     { "name": "azz", "age": 19, "sex": "男" },                     { "name": "ppp", "age": 20, "sex": "男" }                 ]         };

        var arr = json.class1;

        for (var i = 0; i < arr.length; i++) {             alert(arr[i].name);         } } 10.倒计时 十秒钟后协议文本框下的注册按钮才能点击,时钟倒数。(btn.disabled = “” ,让元素可用。disabled=disabled,为不可用)disabled=true; { <head>     <title></title>     <script type="text/javascript">         var count = 10;         function setBtn() {             var btn = document.getElementById("btn");             if (count > 0) {                 btn.value = "请仔细阅读协议(" + count + ")秒";                 count--;             }             else {                 btn.value = "同意";                 btn.disabled = false;                 clearInterval(timeId);             }         }

        var timeId = setInterval("setBtn()", 1000);     </script> </head> <body onload="setBtn()">     <input type="button" id="btn" value="同意" disabled="disabled" /> </body> </html> } 11点击一个按钮,被点击的按钮显示“呜呜”,其他按钮显示“哈哈”。 { <head>     <title></title>     <script type="text/javascript">         //给按钮注册事件         function init() {             var inputs = document.getElementsByTagName("input");             for (var i = 0; i < inputs.length; i++) {                 //判断是不是按钮                 if (inputs[i].type == "button") {                     inputs[i].value = "哈哈";                     //动态注册事件                     inputs[i].onclick = function () {                         //其它按钮哈哈                         for (var j = 0; j < inputs.length; j++) {                             if (inputs[j].type == "button")                             {                                 inputs[j].value = "哈哈";                             }                         }                         //当前点击的按钮,事件源                         var btn = event.srcElement;                         btn.value = "呜呜";                     };                 }             }         }     </script> </head> <body onload="init()">     <input type="button" value="123" /><br />     <input type="text" /><br />     <input type="button" value="123" /><br />     <input type="text" /><br />     <input type="button" value="123" /><br />     <input type="text" /><br />     <input type="button" value="123" /><br />     <input type="text" /><br />     <input type="button" value="123" /><br />     <input type="text" /><br />     <input type="button" value="123" /><br />     <input type="text" /><br />     <input type="button" value="123" /><br />     <input type="text" /><br />     <input type="button" value="123" /><br />     <input type="text" /><br />     <input type="button" value="123" /><br />     <input type="text" /><br /> </body> </html> } 12.加法计算器。 两个文本框中输入数字,点击【=】按钮将相加的结果放到第三个文本框中。 { <head>     <title></title>     <script type="text/javascript">         function operation() {             var num1 = parseInt(document.getElementById("num1").value);             var oper = document.getElementById("oper").value;             var num2 = parseInt(document.getElementById("num2").value);

            switch (oper) {                 case "+": document.getElementById("res").value = num1 + num2; break;                 case "-": document.getElementById("res").value = num1 - num2; break;                 case "*": document.getElementById("res").value = num1 * num2; break;                 case "/": document.getElementById("res").value = num1 / num2; break;                 default: alert("运算符输入错误"); break;             }         }     </script> </head> <body>     <input type="text" id="num1" />     <input type="text" id="oper" />     <input type="text" id="num2" />     =     <input type="text" id="res" />     <input type="button" id="btn" value="计算" onclick="operation()" /> </body> </html> } 13.表格隔行变色(动态生成表格) 点击按钮,表格隔行变色:偶数行为黄色背景,奇数行为默认颜色 { <!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>     <title></title>     <style type="text/css">         .trbg         {             background-color: Yellow;         }     </style>     <script type="text/javascript">         window.onload = function () {             document.getElementById("btn").onclick = function () {                 //创建Json对象                 var sites = [{ "name": "百度", "src": "http://www.baidu.com" },             { "name": "谷歌", "src": "http://www.google.com" },             { "name": "优酷", "src": "http://www.youku.com" },             { "name": "猫扑", "src": "http://www.mop.com" },             { "name": "土豆", "src": "http://www.tudou.com" },             { "name": "人人", "src": "http://www.renren.com" }         ];                 //清空div                 document.getElementById("d1").innerHTML = "";

                //内存中生成table对象                 var table = document.createElement("table");                 table.border = "1px";                 table.width = "400px";                 document.getElementById("d1").appendChild(table);

                //循环数据                 for (var i = 0; i < sites.length; i++) {                     //每一个Json对象                     var site = sites[i];

                    //往table插入tr,-1代表往下生成。                     var tr = table.insertRow(-1)                     //插入第一个td                     var td = tr.insertCell(-1);                     td.innerText = site.name;                     //插入第二个td                     td = tr.insertCell(-1);                     td.innerText = site.src;                 }                 //获得所有的tr                 var trs = document.getElementsByTagName("tr");                 for (var i = 0; i < trs.length; i++) {                 //是第二行的话,给加上className                     if (i % 2 == 1) {                         trs[i].className = "trbg";                     }                 }             }         }     </script> </head> <body>     <input id="btn" type="button" value="创建" />     <div id="d1">     </div> </body> </html>

} 14.文本自动自增 { <head>     <title></title>     <script type="text/javascript">         var tld;         function start() {             var num = parseInt(txt.value);             num++;             txt.value = num;         }         tld = setInterval("start()", 1000);         function stop() {             clearInterval(tld);         }         function over() {             txt.value = 0;         }               </script> </head> <body>     <input type="text" name="txt" value="0" /><br />     <input type="button" value="开始" onclick="start()" />     <input type="button" value="暂停" onclick="stop()" />     <input type="button" value="结束" /> </body> </html> } 15.跑马灯 { <head>     <title>我爱北京天安门</title>     <script type="text/javascript">         var dir = "left";         setInterval(function () {             //获取文档标题             var title = document.title;             var first;             var last             if (dir == "left") {                 //获取第一个字符                 first = title.substr(0, 1);                 //获取从第二个字符开始的所有字符                 last = title.substr(1);             } else if (dir == "right") {                 //获取最后一个字符之前的字符串                 first = title.substr(0, title.length - 1);                 //获取最后一个字符                 last = title.substr(title.length - 1, 1);             }             //交换位置,重新设标题             document.title = last + first;         }, 500);         function setDir(d) {             dir = d;         }

    </script> </head> <body>     <input type="button" value="向左" onclick="setDir('left')" />      <input type="button" value="向右" onclick="setDir('right')" /> </body> </html> } 16.添加版权信息 { head>     <title></title>     <script type="text/javascript">         //重新设置粘贴板的内容的时候。先等一小段时间setTimeout('addCopy()',20)         function addCopy() {             //获取粘贴板中的数据             var txt = clipboardData.getData("text");             //重新设置值             txt += "<br /> 来源:http://www.itcast.cn";             //把数据放回粘贴板             clipboardData.setData("text", txt);         }     </script> </head> <body oncopy="setTimeout('addCopy()',20)"> asdfasfdasfdasdfsafda 阿什顿发斯蒂芬<a href="10-前进后退.htm">10-前进后退.htm</a> </body> </html> } 17.图片游览器动态生成版 实现鼠标在小图片区域时当前小图片边框高亮,并在下面显示大图片 {  <!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>     <title></title>     <style type="text/css">         #d1 img         {             cursor: pointer;         }         .nonborder         {             border: 0px;         }         .border         {             border: solid 2px red;         }     </style>     <script type="text/javascript">         window.onload = function () {             var div = document.getElementById("d1");             var imgs = div.getElementsByTagName("img");             for (var i = 0; i < imgs.length; i++) {                 //给每个图片赋予当前id                 imgs[i].id = i + 1;                 imgs[i].onmouseover = function () {                                       //把每一项的边框颜色还原                     for (var i = 0; i < imgs.length; i++) {                         imgs[i].className = "nonborder";                     }                     //当前项高亮                     this.className = "border";

                                       //获得当前鼠标选择项的id                     var index = this.id;

                    //配置大图片的src                     var src = "img/" + index + ".jpg";                     document.getElementById("i1").src = src;                 }             }         }     </script> </head> <body>     <center>         <div id="d1">             <img src="img/01.jpg" />             <img src="img/02.jpg" />             <img src="img/03.jpg" />             <img src="img/04.jpg" />             <img src="img/05.jpg" />         </div>         <br />         <div>             <img id="i1" src="" />         </div>     </center> </body> </html>

} 18.评分控件 鼠标移动时,前面和当前的星星的高亮。 { <!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>     <title></title>     <script type="text/javascript">         window.onload = function () {             var rating = document.getElementById("rating");             var tds = rating.getElementsByTagName("td");

            //给每个td起索引             for (var i = 0; i < tds.length; i++) {                 tds[i].id = i;                 tds[i].style.cursor = "pointer";

                tds[i].onmouseover = function () {                     //当前id索引                     var index = parseInt(this.id);

                    //当前和之前的td                     for (var i = 0; i <= index; i++) {                         tds[i].style.backgroundColor = "red";                     }                     //之后的td                     for (var i = index + 1; i < tds.length; i++) {                         tds[i].style.backgroundColor = "";                     }                 }             }         }     </script> </head> <body>     <table id="rating">         <tr>             <td>                 ☆             </td>             <td>                 ☆             </td>             <td>                 ☆             </td>             <td>                 ☆             </td>             <td>                 ☆             </td>         </tr>     </table> </body> </html>

} 19.验证Email是否合法 光标离开Email地址框的时候用正则表达式校验是否是合法的Email地址,如果不是的话Email地址框变红,并且注册按钮禁用,否则Email地址框颜色为白色,启用注册按钮 { <!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>     <title></title>     <script type="text/javascript">         window.onload = function () {             document.getElementById("txt").onblur = function () {                 var reg = /[0-9a-zA-Z\._-]+@([0-9a-zA-Z-_]+\.[0-9a-zA-Z-_]+)+/;                 var txt = document.getElementById("txt").value;                 if (!reg.test(txt)) {                     var txt = document.getElementById("txt");                     var btn = document.getElementById("btn");                     txt.style.borderColor = "red";                     btn.disabled = true;                 }             }             document.getElementById("txt").onfocus = function () {                 txt.style.borderColor = "white";                 btn.disabled = false;             }         }     </script> </head> <body>     <table>         <tr>             <td>                 Email:             </td>             <td>                 <input type="text" id="txt" />             </td>         </tr>         <tr>             <td>                 <input type="button" value="提交" id="btn"  />             </td>         </tr>     </table> </body> </html>

} 20.动态生成n个文本框 可以设定生成多个各文本框和设定一行可以放几个文本框。 { <!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>     <title></title>        <script type="text/javascript">         window.onload = function () {             document.getElementById("btn").onclick = function () {                 var div = document.getElementById("d1");                 div.innerHTML = '';                 var num = document.getElementById("num").value;                 var count = parseInt(document.getElementById("count").value) * 200 + 50;                 //这里为什么div的宽度要设置成文本框的宽度*count然后加一点像素才起效。                 div.style.width = count+"px";                 for (var i = 0; i < parseInt(num); i++) {                     var txt = document.createElement("input");                     txt.type = "text";                     txt.value = i + 1;                     txt.style.width = "200px";                     //设定文本框的宽度为200px                     div.appendChild(txt);                 }             }         }     </script> </head> <body>     <input type="text" id="num" />输入生成文本框数量<br />     <input type="text" id="count" />输入一行几个文本框<br />     <input type="button" id="btn" value="生成" />     <div id="d1">     </div> </body> </html>

} 22.无刷新评论 { <!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>     <title></title>     <script type="text/javascript">         window.onload = function () {             document.getElementById("btn").onclick = function () {                 var name = document.getElementById("tName").value;                 var text = document.getElementById("tContent").value;

                //判断是否有table                 var tb = document.getElementById("reply");                 if (!tb) {                     tb = document.createElement("table");                     tb.border = "1px";                     tb.width = "400px";                     tb.id = "reply";                     document.getElementById("re").appendChild(tb);                 }

                var tr = tb.insertRow(-1);

                var td = tr.insertCell(-1);                 td.innerText = name;

                td = tr.insertCell(-1);                 td.innerText = text;             }         }     </script> </head> <body>     评论:     <div id="re">     </div>     <br />     用户名:<input type="text" id="tName" /><br />     内容:<textarea id="tContent" rows="15" cols="30"></textarea><br />     <input id="btn" type="button" value="发表" /> </body> </html>

} 23.相册v1 { <!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>     <title></title>     <style type="text/css">         #tooltips         {             border: solid 1px red;             width: 100px;             height: 100px;             position: absolute;             background-color: Gray;         }         #d1         {             margin: 0px auto;             width: 50%;         }         .nonborder         {             border: 0px;         }         .border         {             border: solid 3px red;         }     </style>     <script type="text/javascript">

           window.onload = function () {             //1.创建json数据             var json = [{ "title": "美女1", "src": "images/1340613409722411.jpg", "girlname": "mm", "age": "21" },             { "title": "美女1", "src": "images/13406134129368172.jpg", "girlname": "mm1", "age": "23" },             { "title": "美女1", "src": "images/1340613416394217.jpg", "girlname": "mm2", "age": "18" },             { "title": "美女1", "src": "images/13406134199189221.jpg", "girlname": "mm3", "age": "24" },             { "title": "美女1", "src": "images/13406789712018077.jpg", "girlname": "mm4", "age": "20" }             ];

            //2.生成小图片             for (var i = 0; i < json.length; i++) {                 var item = json[i];                 var image = document.createElement("img");                 image.src = item.src;                 image.alt = item.title;

                //3.设置自定义属性                 image.setAttribute("girlname", item.girlname);                 image.setAttribute("age", item.age);                 image.setAttribute("id", i); //设置小图片id                 image.style.width = "100px";                 image.style.height = "100px";                 image.style.marginLeft = "10px"; //小图之间的间距                 document.getElementById("d1").appendChild(image);

                //4.给小图注册onmouseover事件                 image.onmouseover = function () {                     clearTimeout(tmrId);   //清楚计时器,照片不再播放                     document.getElementById("d2").innerHTML = "";                     var div1 = document.getElementById("d1");                     var imgs = div1.getElementsByTagName("img");                     for (var i = 0; i < imgs.length; i++) {                         imgs[i].className = "nonborder";            //清楚所有的小图片的高亮效果(播放留下的)                     }                     //设置可点击样式                     this.style.cursor = "pointer";

 

                    //5.生成大图片                     var img = document.createElement("img");                     img.src = this.src;                     img.alt = this.alt;                     img.setAttribute("id", "myimg");                     //设置边框高亮显示                     this.className = "border";                     document.getElementById("d2").appendChild(img);                 }

 

                //6.给小图注册onmouseout事件                 image.onmouseout = function () {                     showPic();   //回复播放效果                     this.className = "nonborder";  //取消边框高亮显示                     var div2 = document.getElementById("d2");                     var img = document.getElementById("myimg");                     if (img) {                         div2.removeChild(img);           //删除DIV2里面的图片                     }                 }

                //7.给小图注册onclick事件                 image.onclick = function () {                     clearTimeout(tmrId);                     //判断页面说那个有没有tooltips的div,如果有的话就删除                     var div = document.getElementById("tooltips");                     if (div) {                         document.getElementById("d1").removeChild(div);                     }                                        //8.生成层,显示信息                     div = document.createElement("div");                     div.id = "tooltips";                     //设置生成的DIV的位置,注意后面加px                     div.style.top = event.clientY + "px";                     div.style.left = event.clientX + "px";                     document.getElementById("d1").appendChild(div);

                    //9。关闭按钮                     var btn = document.createElement("input");                     btn.type = "button";                     btn.value = "关闭";                     btn.style.margin = "0px 53px";                     div.appendChild(btn);                                         //10.详细显示的信息                     var p = document.createElement("p");                     p.innerHTML = "&nbsp;&nbsp;" + this.alt + "<br/>&nbsp;&nbsp;姓名:" + this.getAttribute("girlname") + "<br/>&nbsp;&nbsp;年龄:" + this.getAttribute("age");                     div.appendChild(p);

                    btn.onclick = function () {                         //11.删除生成的DIV                         var div = document.getElementById("d1");                         var tooltips = document.getElementById("tooltips");                         if (tooltips) {                             div.removeChild(tooltips);                         }                     }                 }             }             showPic();         }

        //12.这里设计图片播放的效果

        var json1 = [{ "src": "images/1340613409722411.jpg" },             { "src": "images/13406134129368172.jpg" },             { "src": "images/1340613416394217.jpg" },             { "src": "images/13406134199189221.jpg" },             { "src": "images/13406789712018077.jpg" }             ];         var i = 0;         var tmrId;         var maxid = json1.length-1;         function showPic() {             if (i > 0) {                 document.getElementById(i - 1).className = "nonborder";   //清楚上一个小图的高亮效果,id为上面循环创建的。             }             if (i == 0) {                 document.getElementById(maxid).className = "nonborder";   //假如到第一张图,清楚最后一张图的高亮效果             }             document.getElementById(i).className = "border"; //设置对应小图片高亮             var div2 = document.getElementById("d2");             var oldimg = document.getElementById("oldimg"); //清楚上一次在DIV2里面显示的图片             if (oldimg) {                 div2.removeChild(oldimg);             }             var img = document.createElement("img");   //创建大图片             img.setAttribute("id", "oldimg");             img.src = json1[i].src;             i++;                                      //没执行一次,i自增一次             if (i == json1.length) {            //i为长度时,变为0                 i = 0;             }             div2.appendChild(img);             tmrId = setTimeout("showPic()", 1000);         }     </script> </head> <body>     <div id="d1">     </div>     <center>         <div id="d2">         </div>     </center> </body> </html>

} 24.登录层 { <!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>     <title></title>     <style type="text/css">         div         {             width:300px;             height:200px;             background-color:Red;             display:none;             position:absolute;             margin:0px auto;         }     </style>     <script type="text/javascript">         function showDiv() {             var div = document.getElementById("d1");

            div.style.display = "block";             //document.documentElement 根节点     整个文档的高度和宽度             var x = (document.documentElement.clientWidth - div.clientWidth) / 2;             var y = (document.documentElement.clientHeight - div.clientHeight) / 2;

            div.style.left = x + "px";             div.style.top = y + "px";         }

        function closeDiv() {             var div = document.getElementById("d1");             div.style.display = "none";         }     </script> </head> <body>     <a href="javascript:void(0)" id="login" onclick="showDiv()">登陆</a>

    <div id="d1">         用户名:<input type="text" />         <br />         密码:<input type="text" />         <br />         <input type="button" value="确定" /> <input type="button" value="取消" onclick="closeDiv()" />     </div> </body> </html>

} 25.设置透明度 { <!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>     <title></title>     <style type="text/css">         #d1         {             width:200px;             height:200px;             background-color:Red;         }     </style>     <script type="text/javascript">       

        function f1() {             var div = document.getElementById("d1");

            var num = div.style.filter.replace("alpha(opacity=","").replace(")","");                      num = parseInt( num) - 10;             div.style.filter = "alpha(opacity=" + num + ")";             //alert(div.style.filter);          

            //d1.style.opacity = "0.5";         }     </script> </head> <body>     <input type="button" value="click" onclick="f1()" />     <div id="d1" style="filter:alpha(opacity=100)">     </div> </body> </html>

} 26.跟着鼠标走的图片 { <!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>     <title></title>     <script type="text/javascript">

        document.onmousemove = function () {

            var img = document.getElementById("i1");

            img.style.position = "absolute";

            //!!!!!!!!!!别忘了px             img.style.left = event.clientX - 10 + "px";             img.style.top = event.clientY - 10 + "px";

        }     </script> </head> <body>     <img id="i1" src="tianshi.gif" /> </body> </html>

} 27.评分控件v2 { <!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>     <title></title>     <script type="text/javascript">         window.onload = function () {             var rating = document.getElementById("rating");             var tds = rating.getElementsByTagName("td");

            for (var i = 0; i < tds.length; i++) {                 tds[i].setAttribute("index", i);                 tds[i].style.cursor = "pointer";                 //                 tds[i].onmouseover = function () {                     var index = parseInt(this.getAttribute("index"));

                    for (var i = 0; i <= index; i++) {                         //childNodes  //元素 文本 注释   ie中会忽略空白行,chome不会                         //children    //元素

                        //td 中的img                         var img = tds[i].children[0];                                               img.src = "images/starFill.jpg";                     }

                    for (var i = index + 1; i < tds.length; i++) {                         var img = tds[i].children[0];                         img.src = "images/starEmpty.jpg";                     }                 }             }

        }     </script> </head> <body>     <table id="rating" border="0px" cellpadding="5" cellspacing="0">         <tr>             <td>                 <img src="images/starEmpty.jpg" />             </td>             <td>                 <img src="images/starEmpty.jpg" />             </td>             <td>                 <img src="images/starEmpty.jpg" />             </td>             <td>                 <img src="images/starEmpty.jpg" />             </td>             <td>                 <img src="images/starEmpty.jpg" />             </td>         </tr>     </table> </body> </html>

} 28.倒影时钟 { <!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>     <title></title>     <style type="text/css">         #d1         {             width: 200px;             height: 100px;             margin: 0px auto;         }         #time1         {             position: absolute;         }         #time2         {             filter: flipv() alpha(opacity=20);             font-style: italic;             position: absolute;             top: 50px;         }         .time         {             font-size: 40pt;             color: Red;         }     </style>     <script type="text/javascript">         window.onload = function () {             settime();         }         function settime() {             var time = new Date();             hours = time.getHours();             mins = time.getMinutes();             secs = time.getSeconds();             if (hours < 10) {                 hours = "0" + hours;             }             if (mins < 10) {                 mins = "0" + mins;             }             if (secs < 10) {                 secs = "0" + secs;             }             time1.innerHTML = hours + ":" + mins + ":" + secs;             time2.innerHTML = hours + ":" + mins + ":" + secs;             ctimer = setTimeout('settime()', 960);         }     </script> </head> <body>     <div id="d1">         <div id="time1" class="time">         </div>         <div id="time2" class="time">         </div>     </div> </body> </html>

} 29.图片渐渐出现 { <!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>     <title></title> </head> <body>     <img src="images/13406789712018077.jpg" border="5" id="image1" style="visibility: hidden;         filter: revealTrans(Duration=4.0, Transition=23);">     <script for="window" event="onLoad" language="vbscript">  image1.filters.item(0).apply()  image1.filters.item(0).transition = 12  image1.Style.visibility = ""  image1.filters(0).play(2.0)     </script> </body> </html>

} 30.省市选择 { <!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>     <title></title>     <script type="text/javascript">         var json = [{ "江苏省": ["南京市", "苏州市", "扬州市"] },         { "河北省": ["邯郸市", "邢台市", "石家庄市"] },         { "浙江省": ["杭州市", "温州市", "金华市"] }         ];         window.onload = function () {             //加载所有省             getProvince();             //加载市             getCity();         }         //加载所有的省         function getProvince() {             for (var i = 0; i < json.length; i++) {                 for (var key in json[i]) {                     var option = document.createElement("option");                     option.innerText = key;                     option.value = key;                     pro.appendChild(option);                 }             }         }         //加载当前省所有市         function getCity() {             var pro = document.getElementById("pro");             var city = document.getElementById("city");             //清空上一次加载的所有市             while (city.firstChild) {                 city.removeChild(city.firstChild);             }             //当前省             for (var i = 0; i < json.length; i++) {                 for (var key in json[i]) {                     //当前省的市                     if (pro.value == key) {                         var citys = json[i][key];                         //遍历citys                         for (var i = 0; i < citys.length; i++) {                             var option = document.createElement("option");                             option.innerText = citys[i];                             option.value = citys[i];                             city.appendChild(option);                         }                     }                 }             }

        }     </script> </head> <body>     <select id="pro" onchange="getCity()">     </select>     <br />     <select id="city">     </select> </body> </html>

} 31.密码强度 { <!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>     <title></title>     <script type="text/javascript">         window.onload = function () {             var txt = document.getElementById("txtPwd");             var tb = document.getElementById("tb");             var tds = tb.getElementsByTagName("td");             //td里的背景颜色都还原成灰色             for (var i = 0; i < tds.length; i++) {                 tds[i].backgroundColor = "gray";             }             //onkeyup  键盘弹起 字符已经到文本框,可以获得value值             txt.onkeyup = function () {                 var tb = document.getElementById("tb");                 var tds = tb.getElementsByTagName("td");

                //按下键盘时 初始化所有的td为灰色                 for (var i = 0; i < tds.length; i++) {                     tds[i].style.backgroundColor = "gray";                 }                 //获取密码强度                 var level = getLevel(this.value);                 if (level == 0 || level == 1) {                     //弱密码                     tds[0].style.backgroundColor = "red";

                } else if (level == 2) {                     //中密码                     tds[0].style.backgroundColor = "red";                     tds[1].style.backgroundColor = "red";

                } else if (level == 3) {                     //强密码                     tds[0].style.backgroundColor = "red";                     tds[1].style.backgroundColor = "red";                     tds[2].style.backgroundColor = "red";                 }             }         }         //判断密码强度         function getLevel(txt) {             var num = 0;             //判断txt中是否有数字             var reg = /\d+/;             if (reg.test(txt)) {                 num++;             }             //是否包含字母             var reg = /[a-z]+/i;             if (reg.test(txt)) {                 num++;             }             //是否包含特殊符号             var reg = /[^0-9a-zA-Z]+/;             if (reg.test(txt)) {                 num++;             }             //如果密码长度小于6 强度-1             if (txt.length < 6) {                 num--;             }             return num;         }     </script> </head> <body>     <table border="1px" width="400px">         <tr>             <td>                 用户名:             </td>             <td>                 <input type="text" />             </td>         </tr>         <tr>             <td>                 密码:             </td>             <td>                 <input id="txtPwd" type="text" />                 <!--表格里面嵌套表格-->                 <table id="tb" width="40px;">                     <tr>                         <td>                             弱                         </td>                         <td>                             中                         </td>                         <td>                             强                         </td>                     </tr>                 </table>             </td>         </tr>         <tr>             <td colspan="2">                 <input type="button" name="name" value="注册" />             </td>         </tr>     </table> </body> </html>

} 32.只能输入数字 { <!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>     <title></title>     <script type="text/javascript">         window.onload = function () {             var txt = document.getElementById("txt");             txt.onkeydown = function () {                 if (event.keyCode >= 48 && event.keyCode <= 57) {

                } else {                     return false;                 }             }         }     </script> </head> <body>     <input type="text" id="txt" /> </body> </html>

} 33.全选反选 { <!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>     <title></title>     <script type="text/javascript">         window.onload = function () {             var chkAll = document.getElementById("chkAll");             //点击全选             chkAll.onclick = function () {                 var chks = document.getElementsByName("hobby");                 for (var i = 0; i < chks.length; i++) {                     chks[i].checked = this.checked;                 }             }

            //给所有子的checkbox注册单机事件             var chks = document.getElementsByName("hobby");             for (var i = 0; i < chks.length; i++) {                 //!!!!!                 chks[i].onclick = singleCheck;             }

            //反选             var btn = document.getElementById("btn");             btn.onclick = function () {                 var chks = document.getElementsByName("hobby");                 for (var i = 0; i < chks.length; i++) {                     //把原来的状态取反                     chks[i].checked = !chks[i].checked;                 }

                //根据子的checkbox判断父的checkbox的状态                 singleCheck();             }         }

        function singleCheck() {             var chks = document.getElementsByName("hobby");             //假设所有子的checkbox都被选中             var isCheckAll = true;

            for (var i = 0; i < chks.length; i++) {                 //判断每一个子的checkbox是否被选中                 if (!chks[i].checked) {                     isCheckAll = false;                     break;                 }             }             //isCheckAll  所有子的checkbox是否都被选中             var chkAll = document.getElementById("chkAll");             chkAll.checked = isCheckAll;         }     </script> </head> <body>     <input id="chkAll" type="checkbox" />全选 <input id="btn" type="button" value="反选" />     <br />     <input type="checkbox" name="hobby" />吃饭     <input type="checkbox" name="hobby" />睡觉     <input type="checkbox" name="hobby" />打豆豆 </body> </html>

} 34.权限选择 { <!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>     <title></title>     <script type="text/javascript">         function moveSeleted(all,sel) {             var selOptions = all.getElementsByTagName("option");             for (var i = selOptions.length - 1; i >= 0; i--) {                 if (selOptions[i].selected) {                     selOptions[i].selected = false;                     //追加。把元素放到容器最后                     //sel.appendChild(selOptions[i]);

                    //把new元素,插入到firstChild 之前                     sel.insertBefore(selOptions[i], sel.firstChild);                 }             }         }     </script> </head> <body>     <select size="5" id="all" multiple="multiple">         <option>查找</option>         <option>添加</option>         <option>编辑</option>         <option>删除</option>     </select>     <input type="button" value=">" onclick="moveSeleted(document.getElementById('all'),document.getElementById('sel'))" />     <input type="button" value="<" onclick="moveSeleted(document.getElementById('sel'),document.getElementById('all'))" />     <input type="button" value=">>" />     <input type="button" value="<<" />     <select size="5" id="sel" multiple="multiple">     </select> </body> </html>

} 35.二级菜单 { <!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>     <title></title>     <style type="text/css">         *         {             font-size:13px;             margin:0px;             padding:0px;         }         #menu         {             margin-left:200px;             margin-top:100px;         }         #menu>ul>li         {             width:80px;             list-style-type:none;             float:left;             background-color:Yellow;             margin-left:10px;             text-align:center;             cursor:pointer;         }                 #menu ul ul         {             list-style-type:none;             background-color:Gray;         }                 .hide         {             display:none;         }         .show         {             display:block;         }     </style>     <script type="text/javascript">         window.onload = function () {             //窗体加载的时候把所有子菜单隐藏

            //父级ul             var parent = document.getElementById("parent");             //子菜单对应的ul             var uls = parent.getElementsByTagName("ul");             for (var i = 0; i < uls.length; i++) {                 uls[i].className = "hide";             }

            //给父菜单的li注册事件             var lists = parent.children;             for (var i = 0; i < lists.length; i++) {                 lists[i].onmouseover = function () {                     //当前父菜单 对应的子菜单                     var ul = this.children[0];                     ul.className = "show";                 }

                lists[i].onmouseout = function () {                     //当前父菜单 对应的子菜单                     var ul = this.children[0];                     ul.className = "hide";                 }             }         }     </script> </head> <body>     <div id="menu">         <ul id="parent">            <li>                 父级菜单一                 <ul>                     <li>                         子菜单一                     </li>                     <li>                         子菜单二                     </li>                     <li>                         子菜单三                     </li>                 </ul>            </li>            <li>                 父级菜单二                 <ul>                     <li>                         子菜单一                     </li>                     <li>                         子菜单二                     </li>                     <li>                         子菜单三                     </li>                 </ul>            </li>            <li>                 父级菜单三                 <ul>                     <li>                         子菜单一                     </li>                     <li>                         子菜单二                     </li>                     <li>                         子菜单三                     </li>                 </ul>            </li>            <li>                 父级菜单四                 <ul>                     <li>                         子菜单一                     </li>                     <li>                         子菜单二                     </li>                     <li>                         子菜单三                     </li>                 </ul>            </li>            <li>                 父级菜单五                 <ul>                     <li>                         子菜单一                     </li>                     <li>                         子菜单二                     </li>                     <li>                         子菜单三                     </li>                 </ul>            </li>         </ul>     </div> </body> </html>

} 36.tabcontrol { <!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>     <title></title>     <style type="text/css">         #qqTab         {          width:500px;          height:200px;          border:solid 1px gray;         }         #qqTab ul         {          margin:0px;          height:20px;          background-color:#f1f1f1;          border-bottom:solid 1px gray;         }         #qqTab ul li         {          list-style-type:none;          float:left;          width:80px;          cursor:pointer;          text-align:center;         }         .activeTab         {          background-color:red;          border-bottom-width:0px;         }            </style>     <script type="text/javascript">         window.onload = function () {             var div = document.getElementById("qqTab");             var lists = div.getElementsByTagName("li");

            for (var i = 0; i < lists.length; i++) {                 lists[i].onmouseover = function () {                     //让当前li高亮                     for (var i = 0; i < lists.length; i++) {                         lists[i].className = "";                     }                     this.className = "activeTab";

                    //让当前对应的div显示。其它div隐藏                     var tabs = document.getElementById("tabs");                     var divs = tabs.children;                     for (var i = 0; i < divs.length; i++) {                         divs[i].style.display = "none";                     }

                    var id = this.name;                     var d = document.getElementById(id);                     d.style.display = "block";                 }             }         }     </script> </head> <body>            <div id="qqTab">         <ul>             <li name="tabPage1" class="activeTab">国内新闻</li>             <li name="tabPage2">国际新闻</li>             <li name="tabPage3">火星新闻</li>         </ul>         <div id="tabs">             <div id="tabPage1" >                 国内新闻111111111111             </div>             <div id="tabPage2" style="display:none">                 国际新闻2222222222222             </div>             <div id="tabPage3" style="display:none">                 火星新闻333333333333             </div>         </div>     </div> </body> </html>

} 37.QQ好友菜单 { <!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>     <title></title>     <style type="text/css">         *         {             font-size: 18px;             margin: 0px;             padding: 0px;         }         #menu         {             margin-left: 200px;             margin-top: 100px;         }         #menu > ul > li         {             width: 80px;             list-style-type: none;             background-color: Yellow;             margin-top: 10px;             text-align: center;             cursor: pointer;         }         #menu ul ul         {             list-style-type: none;             background-color: Gray;         }         .hide         {             display: none;         }         .show         {             display: block;         }     </style>     <script type="text/javascript">         var seed = 0;         window.onload = function () {             //窗体加载时把所有子菜单隐藏             //父ul             var parent = document.getElementById("parent");             //子菜单对应ul             var uls = parent.getElementsByTagName("ul");             for (var i = 0; i < uls.length; i++) {                 uls[i].className = "hide";             }

            //给父菜单的li注册事件             var lists = parent.children;             for (var i = 0; i < lists.length; i++) {                 lists[i].onclick = function () {                     //当前父菜单 对应的子菜单                     var ul = this.children[0];                     if (seed == 0) {                         ul.className = "show";                         seed++;                     }                     else {                         ul.className = "hide";                         seed--;                     }                 }

            }         }     </script> </head> <body>     <div id="menu">         <ul id="parent">             <li>好友                 <ul>                     <li>好友1</li>                     <li>好友1</li>                     <li>好友1</li>                 </ul>             </li>             <li>陌生人                 <ul>                     <li>陌生人1</li>                     <li>陌生人2</li>                     <li>陌生人3</li>                 </ul>             </li>             <li>黑名单                 <ul>                     <li>黑名单1</li>                     <li>黑名单2</li>                     <li>黑名单3</li>                 </ul>             </li>         </ul>     </div> </body> </html>

}

 

 

 

 

posted @ 2012-09-06 22:26  zxp19880910  阅读(373)  评论(0编辑  收藏  举报