PAYMENT_TYPE_NONE = 0
PAYMENT_TYPE_INSTANT = 1
PAYMENT_TYPE_AUTHORIZATION = 2

TARGET_TYPE_NONE = 0
TARGET_TYPE_CAMPAIGN = 1
TARGET_TYPE_LIST = 2

COMPLETE_URL = 'paymentcomplete'
CANCEL_URL = 'paymentcancel'

PREAPPROVAL_PERIOD = 365 # days to ask for in a preapproval
PAYPAL_COMMISSION = 0.10