GetElement methods not working in Gmail
<p>For some reason, getElementById() and getElementsByClassName() cannot locate many of the elements on gmail.
For example, the div entitled "Mail" on the navigation bar has the code:</p>

<pre><code>&lt;div id=":qy" class="z9 z8 T2"&gt;&lt;span class="is"&gt;Mail&lt;/span&gt;&lt;div class="Ww4Jzd"&gt;&lt;/div&gt;&lt;/div&gt;
</code></pre>

<p>Yet running <code>document.getElementById(":qy")</code> in the Chrome console doesn't find it. What am I missing?</p>
