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    copied!<h1><a href="http://jsfiddle.net/Yk7PN/" rel="nofollow">DEMO</a></h1> <p>For this:</p> <pre><code>&lt;ul id="menu"&gt; &lt;li&gt;&lt;a href="#"&gt;Item 1&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;Item 2&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;Item 3&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;Item 4&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt;&lt;!-- end #menu --&gt; &lt;ul class="submenu submenu-1"&gt; &lt;li&gt;&lt;a href="#"&gt;Item 1.1&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;Item 1.2&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;Item 1.3&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;Item 1.4&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt;&lt;!-- end #submenu.submenu-item1 --&gt; &lt;ul class="submenu submenu-2"&gt; &lt;li&gt;&lt;a href="#"&gt;Item 2.1&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;Item 2.2&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;Item 2.3&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a href="#"&gt;Item 2.4&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt;&lt;!-- end #submenu.submenu-item1 --&gt; &lt;div class="hero hero-1"&gt;content 1&lt;/div&gt; &lt;div class="hero hero-2"&gt;content 2&lt;/div&gt; &lt;div class="hero hero-3"&gt;content 3&lt;/div&gt; &lt;div class="hero hero-4"&gt;content 4&lt;/div&gt; </code></pre> <p>Use this jQuery:</p> <pre><code>$('#menu li a').click(function () { var index = $('#menu li a').index(this) + 1; $('.submenu, .hero').hide(); $('#menu li').removeClass('active'); $('.submenu-' + index + ', .hero-' + index).slideDown('normal'); }); $('.submenu, .hero').hide(); </code></pre> <p>And check out <a href="http://api.jquery.com/index/" rel="nofollow"><code>jQuery.index()</code></a></p>
 

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