media_upload_library

			return $id;
		}

		// Store the original attachment source in meta.
		add_post_meta( $id, '_source_url', $file );

		// If attachment ID was requested, return it.
		if ( 'id' === $return ) {
			return $id;
		}

		$src = wp_get_attachment_url( $id );
	}

	// Finally, check to make sure the file has been saved, then return the HTML.