• 用于用户中心或后台左侧的JS折叠菜单


    代码简介:一款可以用到后台管理的左侧的JS折叠菜单,而且加入主Cookies技术,使得操作项可以适时保存,也就是当您刷新页面的时候,你上次打开菜单的当前项不会改变,直至Cookies失效为止。而且它的外观也挺漂亮的,相信开发网站的朋友会用得上。

    代码内容:

    <!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" xml:lang="UTF-8" lang="UTF-8">
    <head>
     <title>用于用户中心或后台左侧的JS折叠菜单_网页代码站(www.webdm.cn)</title>
     <style type="text/css">
     body {margin:0;text-align:center;color:#000;font:normal 12px Arial,Verdana,Tahoma;text-align:center;background:#C8D0D5;line-
    
    height:150%;}/*www.webdm.cn*/
     a:link,a:visited {color:#385065;text-decoration:none}
     a:hover {text-decoration:underline}
     #menu {150px;margin:0px 15px;padding:0px;text-align:left;list-style:none}
     #menu .item {margin:5px 0px;padding:0px;list-style:none}/*www.webdm.cn*/
     a.title:link, a.title:visited, a.title:hover {display:block;background:url(http://www.webdm.cn/images/20090914/m201.gif) no-
    
    repeat;color:#385065;font-weight:bold;padding:2px 0 0 22px;128px;line-height:23px;cursor:pointer;text-decoration:none}
     #menu .item ul {border:1px solid #9FACB7;margin:0;118px;padding:3px 0px 3px 30px;background:#fff;list-style:none;display:none}
     #menu .item ul li {display:block;}
     </style>
     <script language="javascript" type="text/javascript">
     // --- 获取ClassName
     document.getElementsByClassName = function(cl) {
      var retnode = [];
      var myclass = new RegExp('\\b'+cl+'\\b');
      var elem = this.getElementsByTagName('*');
      for (var j = 0; j < elem.length; j++) {
       var classes = elem[j].className;
       if (myclass.test(classes)) retnode.push(elem[j]);
      }
      return retnode;
     }
     
     // --- 隐藏所有
     function HideAll() {
      var items = document.getElementsByClassName("optiton");
      for (var j=0; j<items.length; j++) {
       items[j].style.display = "none";
      }
     }
     
     // --- 设置cookie
     function setCookie(sName,sValue,expireHours) {
      var cookieString = sName + "=" + escape(sValue);
      //;判断是否设置过期时间
      if (expireHours>0) {
        var date = new Date();
        date.setTime(date.getTime + expireHours * 3600 * 1000);
        cookieString = cookieString + "; expire=" + date.toGMTString();
      }
      document.cookie = cookieString;
     }
     
     //--- 获取cookie
     function getCookie(sName) {
       var aCookie = document.cookie.split("; ");
       for (var j=0; j < aCookie.length; j++){
      var aCrumb = aCookie[j].split("=");
      if (escape(sName) == aCrumb[0])
        return unescape(aCrumb[1]);
       }
       return null;
     }
     
     window.onload = function() {
      var show_item = "opt_1";
      if (getCookie("show_item") != null) {
        show_item= "opt_" + getCookie("show_item");
      }
      document.getElementById(show_item).style.display = "block";
      var items = document.getElementsByClassName("title");
      for (var j=0; j<items.length; j++) {
       items[j].onclick = function() {
        var o = document.getElementById("opt_" + this.name);
        if (o.style.display != "block") {
         HideAll();
         o.style.display = "block";
         setCookie("show_item",this.name);
        }
        else {
         o.style.display = "none";
        }
       }
      }
     }
     </script>
    </head>
    <body>
    <ul id="menu">
     <li class="item"><a href="javascript:void(0)" class="title" name="1">网站设置</a>
       <ul id="opt_1" class="optiton">
        <li><a href="http://www.webdm.cn">基本设置</a></li>
        <li><a href="#">高级设置</a></li>
       </ul>
     </li>
     <li class="item"><a href="javascript:void(0)" class="title" name="2">生成管理</a>
       <ul id="opt_2" class="optiton">
        <li><a href="http://www.webdm.cn">生成首页</a></li>
        <li><a href="#">生成列表</a></li>
       </ul>
     </li>
     <li class="item"><a href="javascript:void(0)" class="title" name="3">系统管理</a>
       <ul id="opt_3" class="optiton">
        <li><a href="http://www.webdm.cn">会员管理</a></li>
        <li><a href="#">管理员设置</a></li>
        <li><a href="#">退出系统</a></li>
       </ul>
     </li>
    </ul>
    </body>
    </html>
    <br>
    <a href="http://www.webdm.cn">网页代码站</a> - 最专业的代码下载网站 - 致力为中国站长提供有质量的代码!
    

    代码来自:http://www.webdm.cn/webcode/f4af47f1-5241-4fa0-aa71-1f0a2eb376e1.html

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  • 原文地址:https://www.cnblogs.com/webdm/p/1957816.html
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