js实现向右横向滑出的二级菜单效果

本文实例讲述了js实现向右横向滑出的二级菜单效果。分享给大家供大家参考。具体如下：

这是一个网页上的横向滑出二级菜单，菜单是竖向排列的，但二级子菜单项是向右横向滑出的，引入了一个JS封装库文件，这个菜单兼容性方面也做的挺好，只是觉得，菜单中有些代码不便于修改，有兴趣的自己看看吧。

运行效果截图如下：

在线演示地址如下：

http://demo.jb51.net/js/2015/js-web-right-show-out-2l-menu-codes/

具体代码如下：

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>横向滑出的二级菜单</title>
<!--[imcss] *** Infinite Menus Core CSS: Keep this section in the document head for full validation. -->
<style type="text/css">.imcm ul,.imcm li,.imcm div,.imcm span,.imcm a{text-align:left;vertical-align:top;padding:0px;margin:0;list-style:none outside none;border-style:none;background-image:none;clear:none;float:none;display:block;position:static;overflow:visible;line-height:normal;}.imcm li a img{display:inline;border-width:0px;}.imcm span{display:inline;}.imcm .imclear,.imclear{clear:both;height:0px;visibility:hidden;line-height:0px;font-size:1px;}.imcm .imsc{position:relative;}.imcm .imsubc{position:absolute;visibility:hidden;}.imcm li{list-style:none;font-size:1px;float:left;}.imcm ul ul li{width:100%;float:none !important;}.imcm a{display:block;position:relative;}.imcm ul .imsc,.imcm ul .imsubc {z-index:10;}.imcm ul ul .imsc,.imcm ul ul .imsubc{z-index:20;}.imcm ul ul ul .imsc,.imcm ul ul ul .imsubc{z-index:30;}.imde ul li:hover .imsubc{visibility:visible;}.imde ul ul li:hover .imsubc{visibility:visible;}.imde ul ul ul li:hover .imsubc{visibility:visible;}.imde li:hover ul .imsubc{visibility:hidden;}.imde li:hover ul ul .imsubc{visibility:hidden;}.imde li:hover ul ul ul .imsubc{visibility:hidden;}.imcm .imea{display:block;position:relative;left:0px;font-size:1px;line-height:1px;height:0px;width:1px;float:right;}.imcm .imea span{display:block;position:relative;font-size:1px;line-height:0px;}.dvs,.dvm{border-width:0px}/*\*//*/.imcm .imea{visibility:hidden;}/**/</style><!--[if IE]><style type="text/css">.imcm .imea span{position:absolute;}.imcm .imclear,.imclear{display:none;}.imcm{zoom:1;} .imcm li{curosr:hand;} .imcm ul{zoom:1}.imcm a{zoom:1;}</style><![endif]--><!--[if gte IE 7]><style type="text/css">.imcm .imsubc{background-image:url(ie_css_fix);}</style><![endif]--><!--end-->
<!--[imstyles] *** Infinite Menu Styles: Keep this section in the document head for full validation. -->
<style type="text/css">
 #imenus0 .imeam span,#imenus0 .imeamj span {background-image:url(images/light_arrow_right.gif); width:6px; height:9px; left:-6px; 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/light_arrow_right.gif); background-repeat:no-repeat;background-position:top left;}
 /* --[[ Sub Expand Icons ]]-- */
 #imenus0 ul .imeas span,#imenus0 ul .imeasj span {background-image:url(images/medium_purple_right.gif); width:6px; height:9px; left:-6px; 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/medium_purple_right.gif); background-repeat:no-repeat;background-position:top left;}
 #imouter0 {border-style:none; border-color:#6a6a6a; border-width:1px; padding:0px; margin:0px; }
 #imenus0 li ul {background-color:#d3d2df; border-style:solid; border-color:#333333; border-width:1px; padding:5px; margin:4px 0px 0px; }
 #imenus0 li a, #imenus0 .imctitle {height:20px; background-color:#585575; color:#dddddd; text-align:left; font-family:Arial; font-size:12px; font-weight:normal; text-decoration:none; border-style:none; border-color:#ffffff; border-width:1px; padding:2px 8px; margin:0px 0px 2px; }
  #imenus0 li:hover>a {text-decoration:underline; }
  #imenus0 li a.ihover, .imde imenus0 a:hover {text-decoration:underline; }
  #imenus0 li a.iactive {}
 #imenus0 ul a, #imenus0 .imsubc li .imctitle {height:auto; background-color:transparent; 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; margin:0px; }
  #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 class="imrcmain0 imgl" style="width:149px;z-index:999999;position:relative;"><div class="imcm imde" id="imouter0"><ul id="imenus0">
<li class="imatm" style="width:100%;"><a class="" href="#"><span class="imea imeam"><span></span></span>我是谁</a>
 <div class="imsc"><div class="imsubc" style="width:145px;top:-30px;left:159px;"><div class="imunder"></div><div></div><ul style="">
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 <li><a href="#"><span class="imea imeas"><span></span></span>世界好大</a>
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  </ul></div></div></li>
 <li><a href="#"><span class="imea imeas"><span></span></span>海归之乡</a>
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 <li><a href="#">自定义</a></li>
 </ul></div></div></li>
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 <div class="imsc"><div class="imsubc" style="width:146px;top:-30px;left:159px;"><div class="imunder"></div><div></div><ul style="">
 <li><a href="#">预览项目</a></li>
 <li><a href="#">People & Values</a></li>
 <li><a href="#">政府部门</a></li>
 <li><a href="#">Community</a></li>
 <li><a href="#">Environmental</a></li>
 </ul></div></div></li>
<li class="imatm" style="width:100%;"><a href="#"><span class="imea imeam"><span></span></span>Our Business</a>
 <div class="imsc"><div class="imsubc" style="width:146px;top:-30px;left:159px;"><div class="imunder"></div><div></div><ul style="">
 <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 class="imatm" style="width:100%;"><a href="#"><span class="imea imeam"><span></span></span>Investors</a>
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 <li><a href="#">Stock Quotes</a></li>
 </ul></div></div></li>
</ul><div class="imclear"> </div></div></div>
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</html>

希望本文所述对大家的javascript程序设计有所帮助。