title: retrieve items from textboxlist in mootools
body: <p>I have a problem with textboxlist component that I found at <a href="http://www.devthought.com/2008/01/12/textboxlist-meets-autocompletion/" rel="nofollow">http://www.devthought.com/2008/01/12/textboxlist-meets-autocompletion/</a><br>
  I need to retrieve the selected items to bind it to a jsf backing bean, there is a method update, <code>update: function() {
      this.element.set('value', this.bits.getValues().join(this.options.separator));
      return this;
    }</code>  </p>
  
  <p>and I don't know how to use it.Thanks in advance</p>