This option is useless, just in case you need it I write it here. If your targets are wrapped with 'a' tag, the overlay will be clickable. If set the 'withLink' option to 'false', the overlay won't be clickable any more.

<ul>
    <li>
        <a href="#">
        <img src="img/1.jpg" title="this is a normal caption" />
        </a>
    </li>
    ...
</ul>
  $(function() {

      $('#container').sliphover({
          withLink: false
      });

  })