- Add comments to system.inc.php (PEAR) and cleanup wrong tabs

- Add some functionallity to MySQL class

TODO.txt

@@ -73,6 +73,3 @@ General tasks
 
 - Add, extend or modify comments in PEAR syntax so that they can be read with phpdocumentor.
 
-- Add a function to prevent brute force password attacks to the login script. E.g. by
-  logging all login attempts and allowing only 5 logins every 15 minutes.
-  Task assigned to: BPSsoft

interface/lib/classes/db_mysql.inc.php

@@ -217,10 +217,21 @@ class db
        
     public function closeConn()
     {
+    	if($this->linkId)
+    	{
+    		mysql_close($this->linkId);
+    		return true;
+    	} else { return false; }
     }
        
-    public function freeResult() 
+    public function freeResult($query) 
     {
+    	if(mysql_free_result($query))
+    	{
+    		return true;
+    	} else {
+    		return false;
+    	}
     }
        
     public function delete()