public function normalisePropertyName($propertyName) {
		
		if ((strlen ( $propertyName ) > 1) && ((ord ( $propertyName [1] ) >= ord ( "a" )) || is_numeric ( $propertyName [1] ))) {
			$propertyName = strtolower ( $propertyName [0] ) . substr ( $propertyName, 1 );
		}
		
		return $propertyName;
	}