本文实例讲述了js实现兼容性好的微软官网导航下拉菜单效果。分享给大家供大家参考。具体如下：
这是一款微软官网导航菜单，兼容好的下拉菜单，微软官网导航效果，在IE6下没有动画效果，顺便也把IE6的效果给加上，兼容IE6。现在微软的官方网站正在使用，我觉得非常不错。
运行效果截图如下：
在线演示地址如下：
http://demo.jb51.net/js/2015/js-microsoft-web-nav-menu-codes/
具体代码如下：
<!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=utf-8" /><title>微软官网导航菜单</title><style type="text/css">body{margin:0px;text-align:left;padding:0px;font:12px/140% Arial,Verdana,"微软雅黑";background:#d1d1d1;}ul{margin:0px;padding:0px;list-style-type:none;float:left;}a:focus {outline:0;}.nav{width:920px;height:28px;background:#f4f4f4;margin:20px auto;border-radius:5px;}.nav li{width:auto;line-height:20px;float:left;position:relative;}.nav li.msMnu_Item a{border:1px solid #f4f4f4;color:#4f4f4f;display:inline-block;padding:3px 10px;position:relative;text-decoration:none;font-size:14px;}.nav li.msMnu_Item a:hover{border:1px solid #999;background:#e4ecf4;}.nav li.msMnu_hove a{border:1px solid #999;border-bottom:1px solid #fff;background:#fff;color:#4f4f4f;display:inline-block;padding:3px 10px;position:relative;text-decoration:none;font-size:14px;z-index:1000;}.list{overflow:hidden;position:absolute;height:0px;top:27px;left:0;border-radius:0 8px 8px 8px;}.list div{background:#fff;overflow:hidden;padding:12px 0 12px 0;border:1px solid #999;float:left;}.list ul{padding:0px 10px;}.list li{margin:0px;padding:0px;width:170px;}.list li h3{margin:0px;padding:0px;font-size:12px;color:#4f4f4f;border-bottom:1px solid #e3e3e3;line-height:20px;width:100%;float:left;}.list li ul{width:170px;margin:0px;padding:5px 0;}.list li ul li.lis a{width:170px;height:22px;color:#0060a6;font-size:12px;line-height:20px;text-decoration:none;margin:0px;padding:0px;text-indent:3px;border:none;}.list li ul li.lis a:hover{color:#fff;background:#0060a6;}</style><script type="text/javascript">function Class(oParent, sClass){ var aElem = oParent.getElementsByTagName('*'); var aClass = []; var i = 0; for(i=0;i<aElem.length;i++)if(aElem[i].className == sClass)aClass.push(aElem[i]); return aClass;};function css(obj, attr, value){ if(arguments.length == 2){ var style = obj.style, currentStyle = obj.currentStyle; if(typeof attr === 'string')return currentStyle ? currentStyle[attr] : getComputedStyle(obj, false)[attr]; for(var propName in attr)propName == 'opacity' ? (style.filter = "alpha(opacity=" + attr[propName] + ")", style.opacity = attr[propName] / 100) : style[propName] = attr[propName]; }else if(arguments.length == 3){ switch(attr){ case "width": case "height": case "paddingTop": case "paddingRight": case "paddingBottom": case "paddingLeft": case "top": case "right": case "bottom": case "left": case "marginTop": case "marginRigth": case "marginBottom": case "marginLeft": obj.style[attr] = value + "px"; break; case "opacity": obj.style.filter = "alpha(opacity=" + value + ")"; obj.style.opacity = value / 100; break; default: obj.style[attr] = value } }};function extend(destination, source){ for (var propName in source) destination[propName] = source[propName]; return destination};function doMove(obj, json, fnEnd){ clearInterval(obj.timer); obj.iSpeed = 0; fnEnd = extend({ type: "buffer", callback: function() {} }, fnEnd); obj.timer = setInterval(function(){ var iCur = 0, iStop = true; for(var propName in json){ iCur = parseFloat(css(obj, propName)); propName == 'opacity' && (iCur = Math.round(iCur * 100)); switch(fnEnd.type){ case 'buffer': obj.iSpeed = (json[propName] - iCur) / 3; obj.iSpeed = obj.iSpeed > 0 ? Math.ceil(obj.iSpeed) : Math.floor(obj.iSpeed); json[propName] == iCur || (iStop = false, css(obj, propName, iCur + obj.iSpeed)); break; case 'elasticity': obj.iSpeed += (json[propName] - iCur) / 3; obj.iSpeed *= 0.75; Math.abs(json[propName] - iCur) <= 1 && Math.abs(obj.iSpeed) <= 1 ? css(obj, propName, json[propName]) : css(obj, propName, json[propName]) || (iStop = false, css(obj, propName, iCur + obj.iSpeed)); break; case 'accelerate': obj.iSpeed = obj.iSpeed + 3; iCur >= json[propName] ? css(obj, propName, json[propName]) : css(obj, propName, json[propName]) || (iStop = false, css(obj, propName, iCur + obj.iSpeed)); break; } } if(iStop){ clearInterval(obj.timer); obj.timer = null; obj.iSpeed = 0; fnEnd.callback(); } },30);};</script><script type="text/javascript">window.onload = function(){ var aMenu = Class(document, 'menu'); var aList = Class(document, 'list'); var i = iNow = zIndex = 0; for(i=0;i<aMenu.length;i++){ aMenu[i].index = i; aMenu[i].onclick = function(e){ var oEvent = e || event; var aDiv = this.parentNode.getElementsByTagName('div'); var aMenuList = Class(this.parentNode,'menuList'); var iWidth = aMenuList.length * aMenuList[0].offsetWidth + 3; //还原上一个动作 flexible(); if(aDiv[0].style.height==aDiv[1].offsetHeight+'px'){ flexible(); }else{ //当前动作 this.parentNode.className = 'msMnu_hove'; aDiv[0].style.zIndex = zIndex++; if(aMenuList.length>1)aDiv[0].style.width = iWidth + 'px'; doMove(aDiv[0], {height:aDiv[1].offsetHeight}); } //记住上一个 iNow = this.index; oEvent.cancelBubble = true; }; } document.onclick = function(){flexible();}; function flexible(){ aList[iNow].parentNode.className = 'msMnu_Item'; aList[iNow].style.zIndex = 0; doMove(aList[iNow], {height:0}); }};</script></head><body><div class="nav"> <ul> <li class="msMnu_Item"> <a href="javascript:;" class="menu">Windows</a> <div class="list"> <div> <ul class="menuList"> <li> <h3>Windows</h3> <ul> <li class="lis"><a href="javascript:;">Windows 7</a></li> <li class="lis"><a href="javascript:;">Windows Vista</a></li> <li class="lis"><a href="javascript:;">Windows XP</a></li> <li class="lis"><a href="javascript:;">Windows 企业版</a></li> <li class="lis"><a href="javascript:;">Windows Phone</a></li> <li class="lis"><a href="javascript:;">Internet Explorer 8</a></li> </ul> </li> </ul> </div> </div> </li> <li class="msMnu_Item"> <a href="javascript:;" class="menu">Office</a> <div class="list"> <div> <ul class="menuList"> <li> <h3>Office 产品</h3> <ul> <li class="lis"><a href="javascript:;">Office 标准版</a></li> <li class="lis"><a href="javascript:;">Office 家庭和学生版</a></li> <li class="lis"><a href="javascript:;">Office 中小企业版</a></li> <li class="lis"><a href="javascript:;">Office 专业版</a></li> <li class="lis"><a href="javascript:;">Office 专业增强版</a></li> <li class="lis"><a href="javascript:;">Office 企业版</a></li> </ul> <h3>活动与促销</h3> <ul> <li class="lis"><a href="javascript:;">Office 近期活动与促销</a></li> </ul> </li> </ul> <ul class="menuList" style="border-left:1px solid #e3e3e3;"> <li> <h3>Office 资源</h3> <ul> <li class="lis"><a href="javascript:;">Office 购买主页</a></li> <li class="lis"><a href="javascript:;">Office 试用版免费下载</a></li> <li class="lis"><a href="javascript:;">Office for Mac 2011</a></li> <li class="lis"><a href="javascript:;">Office Web Apps</a></li> <li class="lis"><a href="javascript:;">Office 更新和程序下载</a></li> </ul> </li> </ul> </div> </div> </li> <li class="msMnu_Item"> <a href="javascript:;" class="menu">所有产品</a> <div class="list"> <div> <ul class="menuList"> <li> <h3>服务器</h3> <ul> <li class="lis"><a href="javascript:;">所有服务器产品</a></li> <li class="lis"><a href="javascript:;">Lync Server</a></li> <li class="lis"><a href="javascript:;">Windows Server</a></li> <li class="lis"><a href="javascript:;">Windows Small Business Server</a></li> <li class="lis"><a href="javascript:;">Windows Home Server</a></li> <li class="lis"><a href="javascript:;">Windows HPC Server</a></li> <li class="lis"><a href="javascript:;">SQL Server</a></li> </ul> </li> </ul> <ul class="menuList" style="border-left:1px solid #e3e3e3;"> <li> <h3>商业应用</h3> <ul> <li class="lis"><a href="javascript:;">UC 统一沟通</a></li> <li class="lis"><a href="javascript:;">云计算</a></li> <li class="lis"><a href="javascript:;">商业软件平台</a></li> <li class="lis"><a href="javascript:;">企业生产力基础架构</a></li> </ul> <h3>开发工具</h3> <ul> <li class="lis"><a href="javascript:;">Visual Studio 开发工具</a></li> <li class="lis"><a href="javascript:;">MSDN 开发人员网站</a></li> </ul> <h3>设计与个人体验</h3> <ul> <li class="lis"><a href="javascript:;">Expression</a></li> <li class="lis"><a href="javascript:;">Silverlight</a></li> </ul> </li> </ul> <ul class="menuList" style="border-left:#e3e3e3;"> <li> <h3>个人生活与娱乐产品</h3> <ul> <li class="lis"><a href="javascript:;">DirectX （英）</a></li> <li class="lis"><a href="javascript:;">微软拼音输入法</a></li> <li class="lis"><a href="javascript:;">Skype</a></li> </ul> <h3>硬件</h3> <ul> <li class="lis"><a href="javascript:;">微软硬件首页</a></li> <li class="lis"><a href="javascript:;">鼠标</a></li> <li class="lis"><a href="javascript:;">键盘</a></li> </ul> <h3>Windows Phone</h3> <ul> <li class="lis"><a href="javascript:;">Windows Phone 首页</a></li> <li class="lis"><a href="javascript:;">应用与下载</a></li> </ul> </li> </ul> </div> </div> </li> <li class="msMnu_Item"> <a href="javascript:;" class="menu">下载</a> <div class="list"> <div> <ul class="menuList"> <li> <h3>下载中心</h3> <ul> <li class="lis"><a href="javascript:;">微软中国下载中心</a></li> <li class="lis"><a href="javascript:;">Windows 下载</a></li> <li class="lis"><a href="javascript:;">Office 下载</a></li> <li class="lis"><a href="javascript:;">Server 下载</a></li> <li class="lis"><a href="javascript:;">Office Marketplace 下载</a></li> </ul> </li> </ul> <ul class="menuList" style="border-left:1px solid #e3e3e3;"> <li> <h3>最新下载</h3> <ul> <li class="lis"><a href="javascript:;">Internet Explorer 8</a></li> <li class="lis"><a href="javascript:;">Internet Explorer 9</a></li> <li class="lis"><a href="javascript:;">Office 2010 试用版</a></li> <li class="lis"><a href="javascript:;">Silverlight</a></li> <li class="lis"><a href="javascript:;">Windows 7 Service Pack 1</a></li> </ul> </li> </ul> </div> </div> </li> <li class="msMnu_Item"> <a href="javascript:;" class="menu">安全与更新</a> <div class="list"> <div> <ul class="menuList"> <li> <h3>安全与更新</h3> <ul> <li class="lis"><a href="javascript:;">安全中心首页</a></li> <li class="lis"><a href="javascript:;">Microsoft Update</a></li> <li class="lis"><a href="javascript:;">Office Update</a></li> <li class="lis"><a href="javascript:;">微软安全软件</a></li> <li class="lis"><a href="javascript:;">恶意软件删除工具</a></li> </ul> </li> </ul> </div> </div> </li> <li class="msMnu_Item"> <a href="javascript:;" class="menu">培训与支持</a> <div class="list"> <div> <ul class="menuList"> <li> <h3>产品支持</h3> <ul> <li class="lis"><a href="javascript:;">帮助与支持首页</a></li> <li class="lis"><a href="javascript:;">Windows 帮助</a></li> <li class="lis"><a href="javascript:;">Office 帮助</a></li> <li class="lis"><a href="javascript:;">TechNet 支持</a></li> <li class="lis"><a href="javascript:;">MSDN 支持</a></li> </ul> </li> </ul> <ul class="menuList" style="border-left:1px solid #e3e3e3;"> <li> <h3>活动</h3> <ul> <li class="lis"><a href="javascript:;">微软活动中心</a></li> <li class="lis"><a href="javascript:;">培训</a></li> <li class="lis"><a href="javascript:;">微软 IT 课堂</a></li> <li class="lis"><a href="javascript:;">微软在线培训及认证</a></li> </ul> </li> </ul> </div> </div> </li> <li class="msMnu_Item"> <a href="javascript:;" class="menu">立即购买</a> <div class="list"> <div> <ul class="menuList"> <li> <h3>立即购买</h3> <ul> <li class="lis"><a href="javascript:;">微软产品选购平台首页</a></li> <li class="lis"><a href="javascript:;">个人用户选购平台</a></li> <li class="lis"><a href="javascript:;">企业用户选购平台</a></li> <li class="lis"><a href="javascript:;">特别优惠</a></li> <li class="lis"><a href="javascript:;">批量许可授权</a></li> </ul> </li> </ul> </div> </div> </li> <li class="msMnu_Item"> <a href="javascript:;" class="menu">解决方案</a> <div class="list" style="border-radius:8px 0 8px 8px;right:0;left:auto;"> <div> <ul class="menuList"> <li> <h3>合作伙伴解决方案</h3> <ul> <li class="lis"><a href="javascript:;">查找合作伙伴解决方案</a></li> </ul> <h3>企业和组织</h3> <ul> <li class="lis"><a href="javascript:;">Microsoft Dynamics ERP & CRM</a></li> <li class="lis"><a href="javascript:;">大型企业信息化专区</a></li> <li class="lis"><a href="javascript:;">教育信息化专区</a></li> <li class="lis"><a href="javascript:;">微软中小企业在线体验中心</a></li> <li class="lis"><a href="javascript:;">微软正版授权中心</a></li> </ul> </li> </ul> <ul class="menuList" style="border-left:1px solid #e3e3e3;"> <li> <h3>开发人员和 IT 专业人士</h3> <ul> <li class="lis"><a href="javascript:;">MSDN</a></li> <li class="lis"><a href="javascript:;">TechNet</a></li> <li class="lis"><a href="javascript:;">IT 专业社区</a></li> </ul> <h3>中国案例中心</h3> <ul> <li class="lis"><a href="javascript:;">微软中国案例中心</a></li> </ul> <h3>微软技巧与帮助</h3> <ul> <li class="lis"><a href="javascript:;">微软家庭馆</a></li> <li class="lis"><a href="javascript:;">微软工作馆</a></li> </ul> </li> </ul> </div> </div> </li> <li class="msMnu_Item"> <a href="javascript:;" class="menu">合作伙伴</a> <div class="list" style="border-radius:8px 0 8px 8px;right:0;left:auto;"> <div> <ul class="menuList"> <li> <h3>合作伙伴</h3> <ul> <li class="lis"><a href="javascript:;">微软合作伙伴网络</a></li> <li class="lis"><a href="javascript:;">查找微软合作伙伴</a></li> <li class="lis"><a href="javascript:;">微软合作伙伴网络权益概览</a></li> <li class="lis"><a href="javascript:;">加入微软合作伙伴网络（MPN）</a></li> <li class="lis"><a href="javascript:;">订阅微软行动宝盒（MAPs）</a></li> </ul> </li> </ul> </div> </div> </li> <li class="msMnu_Item"> <a href="javascript:;" class="menu">关于微软</a> <div class="list" style="border-radius:8px 0 8px 8px;right:0;left:auto;"> <div> <ul class="menuList"> <li> <h3>关于微软</h3> <ul> <li class="lis"><a href="javascript:;">关于微软</a></li> <li class="lis"><a href="javascript:;">微软新闻</a></li> <li class="lis"><a href="javascript:;">微软在线视频中心</a></li> <li class="lis"><a href="javascript:;">投资者关系 (英)</a></li> <li class="lis"><a href="javascript:;">招贤纳士</a></li> </ul> </li> </ul> </div> </div> </li> </ul></div></body></html>希望本文所述对大家的JavaScript程序设计有所帮助。
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