public static function prependNullOption(&$list,$idField=NULL,$nameField=NULL,$text=NULL) {
	
		$idField	= $idField	? $idField	: 'id';
		$nameField	= $nameField? $nameField: 'name';
		$text		= $text		? $text		: Translator::do('SELECT_NULL_VALUE');
	
		$nullItem = new \stdClass();
	
		$nullItem->$idField		= '';
		$nullItem->$nameField	= $text;
	
		array_unshift($list,$nullItem);
	
		return $list;
	
	}