How to implement `using` in javascript?
<p>I would like to make something like this (similar to <a href="/questions/tagged/c%23" class="post-tag" title="show questions tagged 'c#'" rel="tag">c#</a>):</p>

<pre><code>using("content/jquery.js");

$("div").fadeOut();
</code></pre>

<p>So if <code>content/jquery.js</code> is not on a <code>script</code> in the <code>head</code> I would like to load it and continue the execution after it loads.</p>

<p>Is it possible to implement this or something similar? Note: I could have more than 1 <code>using</code></p>
