这是一个支持多级显示的JS菜单，鼠标移向带有小三角的菜单项，可下拉出二级子菜单项，在该主菜单的上方会显示标记，指引当前的位置，本菜单代码使用了一个JS类，可根据代码地址自行下载，这个菜单未在网上测试，用在自己的网站里可能要修改代码。
运行效果截图如下：
在线演示地址如下：
具体代码如下：
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width:7px; height:5px; left:-7px; top:5px; background-repeat:no-repeat;background-position:top left;} #imenus0 li:hover .imeam span,#imenus0 li a.iactive .imeamj span {background-image:url(images/sample3_main_arrow.gif); background-repeat:no-repeat;background-position:top left;} #imenus0 ul .imeas span,#imenus0 ul .imeasj span {background-image:url(images/sample3_sub_arrow.gif); width:5px; height:7px; left:-5px; top:3px; background-repeat:no-repeat;background-position:top left;} #imenus0 ul li:hover .imeas span,#imenus0 ul li a.iactive .imeasj span {background-image:url(images/sample3_sub_arrow.gif); background-repeat:no-repeat;background-position:top left;} #imouter0 {background-color:#ffffff; border-style:none; border-color:#6a6a6a; border-width:1px; padding:0px; margin:0px; } #imenus0 li ul {background-color:#efefef; border-style:solid; border-color:#cccccc; border-width:1px; padding:5px; margin:4px 0px 0px; } #imenus0 li a, #imenus0 .imctitle {color:#333333; text-align:left; font-family:Arial; font-size:12px; font-weight:normal; text-decoration:underline; border-style:solid; border-color:#dddddd; border-width:1px; padding:2px 8px; } #imenus0 li:hover>a {background-color:#efefef; text-decoration:underline; } #imenus0 li a.ihover, .imde imenus0 a:hover {background-color:#efefef; text-decoration:underline; } #imenus0 li a.iactive {} #imenus0 ul a, #imenus0 .imsubc li .imctitle {color:#555555; text-align:left; font-size:11px; font-weight:normal; text-decoration:none; border-style:none; border-color:#000000; border-width:1px; padding:2px 5px; } #imenus0 ul li:hover>a {color:#000000; text-decoration:underline; } #imenus0 ul li a.ihover {color:#000000; text-decoration:underline; } #imenus0 ul li a.iactive {background-color:#ffffff; } </style><!--end--> </head> <body> <div><div><ul> <li><a href="#"><span><span></span></span>Who We Are</a> <div><div><ul> <li><a href="#">Overview</a></li> <li><a href="#">Mission & Goals</a></li> <li><a href="#">History</a></li> <li><a href="#">Management</a></li> <li><a href="#">Working at Tyco</a></li> <li><a href="#">Press Center</a></li> <li><a href="#"><span><span></span></span>Worldwide</a> <div><div><ul> <li><a href="#">Europe</a></li> <li><a href="#">Asia</a></li> <li><a href="#">US & Canada</a></li> <li><a href="#">Mexico</a></li> <li><a href="#">Australia</a></li> <li><a href="#">Middle East</a></li> </ul></div></div></li> <li><a href="#"><span><span></span></span>Board of Directors</a> <div><div><ul> <li><a href="#">Overview</a></li> <li><a href="#">Electronics</a></li> <li><a href="#">Fire & Security</a></li> <li><a href="#">Healthcare</a></li> <li><a href="#">Plastics & Adhesives</a></li> <li><a href="#">Engineered Producs</a></li> <li><a href="#">Tyco Worldwide</a></li> </ul></div></div></li> <li><a href="#">Customers</a></li> </ul></div></div></li> <li><a href="#"><span><span></span></span>Our Commitment</a> <div><div><ul> <li><a href="#">Overview</a></li> <li><a href="#">People & Values</a></li> <li><a href="#">Governance</a></li> <li><a href="#">Community</a></li> <li><a href="#">Environmental</a></li> </ul></div></div></li> <li><a href="#"><span><span></span></span>Our Business</a> <div><div><ul> <li><a href="#">Overview</a></li> <li><a href="#">Electronics</a></li> <li><a href="#">Fire & Security</a></li> <li><a href="#">Healthcare</a></li> <li><a href="#">Plastics & Adhesives</a></li> <li><a href="#">Engineered Producs</a></li> <li><a href="#">Tyco Worldwide</a></li> </ul></div></div></li> <li><a href="#"><span><span></span></span>Investors</a> <div><div><ul> <li><a href="#">Overview</a></li> <li><a href="#">Stock Quotes</a></li> </ul></div></div></li> </ul><div> </div></div></div> <script language="JavaScript" src="https://www.jb51.net/images/ocscript.js" type="text/javascript"></script> </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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