mambos/editors/tinymce_exp/jscripts/tiny_mce/plugins/advlink/link.php
<select name="target" id="target">
          <option value="_self" selected>_self&nbsp;(<?php echo _insert_link_target_same ?>)</option>
          <option value="_blank">_blank&nbsp;(<?php echo _insert_link_target_blank ?>)</option>
          <!--<option value="_parent">_parent&nbsp;(<?php echo _insert_link_target_parent ?>)</option>
          <option value="_top">_top&nbsp;(<?php echo _insert_link_target_top ?>)</option>-->
</select>