Index: branches/unlabeled/unlabeled-1.28.2/kernel/units/categories/categories_tag_processor.php
===================================================================
diff -u -r5715 -r5787
--- branches/unlabeled/unlabeled-1.28.2/kernel/units/categories/categories_tag_processor.php	(.../categories_tag_processor.php)	(revision 5715)
+++ branches/unlabeled/unlabeled-1.28.2/kernel/units/categories/categories_tag_processor.php	(.../categories_tag_processor.php)	(revision 5787)
@@ -470,6 +470,33 @@
 		}
 		return parent::PrintPages($params);
 	}
+	
+	function InitCatalog($params)
+	{
+		$tab_prefixes = $this->Application->GetVar('tp'); // {all, <prefixes_list>, none}
+		if ($tab_prefixes === false) $tab_prefixes = 'all';
+		$skip_prefixes = isset($params['skip_prefixes']) && $params['skip_prefixes'] ? explode(',', $params['skip_prefixes']) : Array();
+		
+		// get all prefixes available
+		$prefixes = Array();
+		foreach ($this->Application->ModuleInfo as $module_name => $module_data) {
+			if ($module_data['Var'] == 'm') continue;
+			$prefixes[] = $module_data['Var'];
+		}
+		
+		if ($tab_prefixes == 'none') {
+			$skip_prefixes = array_unique(array_merge($skip_prefixes, $prefixes));
+		}
+		elseif ($tab_prefixes != 'all') {
+			// prefix list here
+			$tab_prefixes = explode(',', $tab_prefixes); // list of prefixes that should stay
+			$skip_prefixes = array_diff($prefixes, $tab_prefixes);
+		}
+		
+		$params['name'] = $params['render_as'];
+		$params['skip_prefixes'] = implode(',', $skip_prefixes);
+		return $this->Application->ParseBlock($params, 1);
+	}
 }