Span tag onclick loads blank page?
<p>I've got a span tag:</p>

<pre><code>&lt;span id="myBtnfb"
    class="demo" onclick="open()"&gt;
    &lt;span class="icon"&gt;&amp;nbsp;&lt;/span&gt;
    &lt;span class=""&gt;Testing&lt;/span&gt;
&lt;/span&gt; 
</code></pre>

<p>and some javascript </p>

<pre><code>  function open() {
      alert('Hello');
  }
</code></pre>

<p>Now, what I want to happen is when the span is clicked, it fires the function "open".   What seems to happen though is it just reloads the page but brings back a blank page.  Any ideas?</p>

<p><a href="http://jsfiddle.net/qtf5s/" rel="nofollow">http://jsfiddle.net/qtf5s/</a></p>
