Index: trunk/kernel/parser.php
===================================================================
diff -u -r3344 -r3345
--- trunk/kernel/parser.php	(.../parser.php)	(revision 3344)
+++ trunk/kernel/parser.php	(.../parser.php)	(revision 3345)
@@ -2339,7 +2339,7 @@
 
 	$cat = getArrayValue($attribs, '_category');
 
-	if($cat) $m_var_list_update['cat'] = ($cat == 'NULL') ? 0 : $cat;
+	if($cat !== false) $m_var_list_update['cat'] = ($cat == 'NULL') ? 0 : $cat;
 	if( getArrayValue($attribs,'_anchor') ) $url_params['anchor'] = $attribs['_anchor'];
 
 	$ret = HREF_Wrapper('', $url_params);