node in tooltip

Hi there,
I try to load a node in the tooltip without success. what's wrong in my code? The tooltip shows something else from the website!

//my link:
// <div class="add-postit bt-active">
  //    <a href="node/311" class="add-postit" bt-xtitle="" title="">add-postit</a>
   //  </div>

function vf_postit_init(){
    $options['bt_add_postit'] = array(
      'cssSelect' => '.add-postit',
     'ajaxPath' => array("$(this).attr('href')", '.clear-block p'),
       'trigger' => array('mouseover'),
      'width' => 350,
    );
      beautytips_add_beautytips($options);
  
}