title: jquery ui - show selected option on multiselect widget
body: <p>I am using a Jquery UI multiselect box. </p>
  
  <p>If I access the box like this</p>
  
  <pre><code>category = $("#edit_category").val();
  </code></pre>
  
  <p>I see that it has a value already in there. I want this value to be visible from the beginning. I read somewhere that it'd be useful to set the "option tag" of the multiselect from "selected" to "selected"... I'm not sure what this means.</p>
  
  <p>thoughts? </p>