"; fb+="Your Message:"; fb+="
What is a CVV Number?
"; cvvi+="CARD VERIFICATION VALUE CODE (CVV)
"; cvvi+="CVV is an authentication procedure established by credit card "; cvvi+="companies to further efforts towards reducing fraud for internet transactions."; cvvi+="It consists of requiring a card holder to enter the CVV number in at transaction "; cvvi+="time to verify that the card is on hand. The CVV code is a security feature for "; cvvi+="\"card not present\" transactions (e.g., Internet transactions), and appears "; cvvi+="on most major credit and debit cards. This new feature is a three- "; cvvi+="or four-digit code which provides a cryptographic check of the information embossed "; cvvi+="on the card. Therefore, the CVV code is not part of the card number itself.
"; cvvi+="The CVV code helps ascertain that the customer placing the order actually possesses "; cvvi+="the credit/debit card and that the card account is legitimate. Each credit card "; cvvi+="company has its own name for the CVV code, but it functions the same for all major "; cvvi+="card types. (VISA refers to the code as CVV2, MasterCard calls it CVC2, and American "; cvvi+="Express calls it CID.)
"; document.getElementById('customer_message').innerHTML=cvvi; } function showCVVLoc() { var cvvl="Where is the CVV Number?
"; cvvl+="
"; cvvl+="
This number is printed on your MasterCard & Visa cards in the "; cvvl+="signature area of the back of the card. (it is the last 3 digits AFTER "; cvvl+="the credit card number in the signature area of the card).
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cvvl+="You can find your four-digit card verification number on the front "; cvvl+="of your American Express credit card above the credit card number on "; cvvl+="either the right or the left side of your credit card.
"; cvvl+="Please note that not all theaters accept American Express credit cards.
"; document.getElementById('customer_message').innerHTML=cvvl; } function csInvalid(){ var csi="What is a Credit Card Checksum?
"; csi+="Credit card numbers are arranged in such a way that by applying a mathematical formula "; csi+="to the entire card number, it can be quickly determined if the number is \"valid\".
"; csi+="In this context valid simply means that the calculation performed on the number returns "; csi+="the expected result. It doesn't indicate that a valid number is actually associated "; csi+="to a proper credit account or that an invalid number (though highly unlikely) is not.
"; csi+="If you are seeing an invalid message for the number you entered, please double check it. "; csi+="The system will still attempt to make the charge on the card, however you are likely to receive "; csi+="a message back similar to \"invalid field format\". If this is the case, please re-check the "; csi+="number entered or use a different card."; document.getElementById('customer_message').innerHTML=csi; }