advanced search tab does not appear.

application/views/scripts/library/index.phtml

@@ -1,6 +1,6 @@
 <ul>
 	<li><a href="#simpleSearch">Search</a></li>
-	<li><a href="#advancedSearch">Advanced Search</a></li>
+	<!--<li><a href="#advancedSearch">Advanced Search</a></li>-->
 </ul>
 <div id="simpleSearch">
 	<table id="library_display" cellpadding="0" cellspacing="0" class="datatable">
@@ -18,9 +18,11 @@
 		<tbody></tbody>
 	</table>
 </div>
+<!--
 <div id="advancedSearch">
     <div id="search">
     <?php //echo $this->form; ?>
     </div>
     <div><?php //echo var_dump($this->md); ?></div>
 </div>
+-->