Cannot fire "CheckAll" Method - jQuery UI MultiSelect Widget
<p>I'm trying to have all of my options selected in my <a href="http://www.erichynds.com/jquery/jquery-ui-multiselect-widget/" rel="nofollow">Multiselect</a> widget on startup.</p>

<p>In the documentation, it says:</p>

<blockquote>
  <p>After an instance has been initialized, interact with it by calling any of these methods:</p>
  
  <p>// example:<br>
     $("#multiselect").multiselect("method_name");  </p>
  
  <p>checkAll ------   Check all checkboxes. </p>
</blockquote>

<p>So I did this:</p>

<pre><code>$("#music").multiselect("checkAll");
</code></pre>

<p>And this is the error I got:</p>

<blockquote>
  <p>Error: cannot call methods on multiselect prior to initialization;<br>
  attempted to call method 'checkAll' [Break On This Error]     </p>
  
  <p>throw new Error( msg );  </p>
</blockquote>

<p>Any ideas? Thanks!</p>
