public static function _getRelation ($obj, $path, $params = array ())
	{
		
		foreach ($path as $class => $name)
		{
			
			$class		= get_class ($obj);
			$childClass	= $class::$attributes[$name]['relation'];
			
			if ($obj->iget ($name))
			{
				$params['where'][]	= array ($childClass::$pk, $obj->iget ($name));
				$obj	= $childClass::_Read ($params);
			}
			else
			{
				return FALSE;
			}
			
		}
		
		return $obj;
		
	}