<b>AUTH_CAPTURE:</b><br>
Transactions of this type will be sent for authorization. The transaction will be 
automatically picked up for settlement if approved. This is the default transaction 
type in the gateway. If no type is indicated when submitting transactions to the 
gateway, the gateway will assume that the transaction is of the type 
AUTH_CAPTURE. <br><br>

<b>AUTH_ONLY:</b><br>
Transactions of this type are submitted if the merchant wishes to validate the credit 
card for the amount of the goods sold. If the merchant does not have goods in stock 
or wishes to review orders before shipping the goods, this transaction type should be 
submitted. The gateway will send this type of transaction to the financial institution 
for approval. However this transaction will not be sent for settlement. <br><br><br>
<b>Important note:</b> If you have electronic checks enabled as a payment method, and your customer pays with a check, Squirrelcart will overide this field setting with "AUTH_CAPTURE", as "AUTH_ONLY" does not apply to echecks.



