title: select next option in jquery selectmenu
body: <p>trying to create a button that will goto the next option in a selectmenu that has $selectmenu assigned to it.</p>
  
  <pre><code>$('option:selected', 'select').removeAttr('selected').next('option').attr('selected', 'selected');
  </code></pre>
  
  <p>works on a standard HTML select menu but not when it has the jquery $selectmenu assigned to it.</p>
  
  <pre><code>$('select#toolMenu').selectmenu({
      style:'popup', 
      width: 600,
      menuWidth: 600,
      maxHeight: 400,
      format: addressFormatting,
      change: function () { 
          var val = this.value;
          window.location=val;
      } 
  });
  </code></pre>
  
  <p>any idea how i can control the selectmenu?</p>
  
  <p>any help appreciated...</p>
  
  <p>Dan.</p>