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
          });

      })