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POwhy the javascript toggle code doesn't work?
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  1. POwhy the javascript toggle code doesn't work?
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    copied!<p>I have added the <strong>Prototype</strong> library to my site, then add the following code. but when i click the span, the ul content is not hidden. the link href still work.</p> <pre><code>Event.observe(window, 'load', function() { Event.observe('.block-category li.parent span', 'click', function(e){ $('.block-category li.parent ul').toggle(); e.preventDefault(); }); }); </code></pre> <p>html:</p> <pre><code> &lt;div class="block block-category"&gt; &lt;li class="level-top parent"&gt; &lt;a href="example.com/...."&gt;&lt;span&gt;text one&lt;/span&gt;&lt;/a&gt; &lt;ul&gt; //the 1 ul &lt;li&gt;&lt;a&gt;&lt;span&gt;....&lt;/span&gt;&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a&gt;&lt;span&gt;....&lt;/span&gt;&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a&gt;&lt;span&gt;....&lt;/span&gt;&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a&gt;&lt;span&gt;....&lt;/span&gt;&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;li class="level-top"&gt;&lt;a href="..."&gt;&lt;span&gt;....&lt;/span&gt;&lt;/a&gt;&lt;/li&gt; &lt;li class="level-top parent"&gt; &lt;a href="example.com/...."&gt;&lt;span&gt;text two&lt;/span&gt;&lt;/a&gt; &lt;ul&gt; //the 2 ul &lt;li&gt;&lt;a&gt;&lt;span&gt;....&lt;/span&gt;&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;li class="level-top parent"&gt; &lt;a href="example.com/...."&gt;&lt;span&gt;text three&lt;/span&gt;&lt;/a&gt; &lt;ul&gt; &lt;li&gt;&lt;a&gt;&lt;span&gt;....&lt;/span&gt;&lt;/a&gt;&lt;/li&gt; &lt;li&gt;&lt;a&gt;&lt;span&gt;....&lt;/span&gt;&lt;/a&gt;&lt;/li&gt; &lt;/ul&gt; &lt;/li&gt; &lt;/div&gt; </code></pre> <p>thank you.</p> <p><strong>ps</strong>: when click <strong>text one</strong>, the the 1 ul toggle. when click *<em>text two</em>*the 2 ul toggle, ...</p>
 

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