Basic JavaScript EventListener NOT work?
<p>I'm trying to learn the basics of JavaScript
I cant figure out why this doesn't work...it's so basic?</p>

<pre><code>&lt;html&gt;
&lt;head&gt;
&lt;meta charset="utf-8" /&gt;
&lt;style type="text/css"&gt;
    ul{
        list-style-type:none;
    }
    div{
        width:300px;
        height:200px;
        background-color:#0066cc;
    }
&lt;/style&gt;

&lt;script language="text/javascript"&gt; 
    var testing = document.getElementById("addBtn");
    testing.addEventListener("click", function(e){ alert("test") } , false);
&lt;/script&gt;

&lt;/head&gt;
&lt;body&gt;
&lt;ul id="placeholder"&gt;&lt;/ul&gt;
&lt;a href="#" id="addBtn"&gt;Add&lt;/a&gt;
&lt;/body&gt;
&lt;/html&gt;
</code></pre>
