Toggle and fadeIn
<p>Hello everyone this is the first time I write on this site. Let me explain my problem right away.</p>

<p>I have this code:</p>

<pre><code>&lt;script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"&gt;&lt;/script&gt;
&lt;script type="text/javascript"&gt;
    $(document).scroll(function() {
        $('#menu-fixed').toggle($(this).scrollTop() &gt; 100 );
    });
&lt;/script&gt;
</code></pre>

<p>to show a menu when you shake 100px</p>

<p>I would like to add a "fadeIn" effect but I'm not able to write javascript.</p>
