$os_id

Primary Key from table

$ostype_id

Primary Key from table

$os_key

String that idetify OS eg.: "winme"; "windows nt 6.0"; "linux";

$os_name

Human friendly OS name eg.: "Windows XP"; "Windows Vista"; "Mac OS"; "Linux";

$os_img

Name of image file without extension eg.: "windowsxp"; "windowsvista"; "mac";

$ostype_name

Human friendly OS Type name eg.: "Windows"; "PDA or Phone"; "Other";

$ostype_img

Name of image file without extension eg.: "unknown"; "windowsxp"; "linux"; "other"; "pda";