title: Show random classes
body: <p>Let's say I have some classes like:</p>
  
  <pre><code>&lt;div class="something" style="display: none"&gt;Some text I would like to show&lt;/div&gt;
  &lt;div class="something" style="display: none"&gt;Some text2 I would like to show&lt;/div&gt;
  &lt;div class="something" style="display: none"&gt;Some text3 I would like to show&lt;/div&gt;
  &lt;div class="something" style="display: none"&gt;Some text4 I would like to show&lt;/div&gt;
  &lt;div class="something" style="display: none"&gt;Some text5 I would like to show&lt;/div&gt;
  </code></pre>
  
  <p>And I want to show random class every few seconds. I suppose pseudo-code would be something like that:</p>
  
  <pre><code>    setInterval(function() {
          $('.something').hide();
          var rand_number = random(1, ('.something').length);
          $('.something').array[rand_number].show();
      }, 5000);
  </code></pre>
  
  <p>Thanks.</p>