function plouplouf()
	  {    	                                    
	  $user = JFactory::getUser();
	  $userid = $user->id;

	  $params = JComponentHelper::getParams('com_component');
	  $plouf= $params->get('plouf', 1);
		                       
		$database =& JFactory::getDBO()  ;
	 	$database->setQuery( "SELECT SUM(ma-colonne)
					FROM #__batenergie WHERE author='$userid'
					" );
		  if (!$database->query()) {
		    echo $database->stderr();
		    return false;
		  }
	  return $database->loadResult();
	  }