var _ = {
	ERROR_NOT_A_FLICKR_URI:			'This is not a flickr URI.',
	ERROR_NON_SUPPORTED_FLICKR_URI:	'Sorry, This flickr URI is not supported.',
	ERROR_MUST_BE_A_NUMBER:			'Must be a number.',
	
	MESSAGE_RESOLVING_USERNAME:	'resolving user name...',
	MESSAGE_NAME2ID_FAILED:		'Unable to resolve user name.'
};