Must go to the PayPal Site to enter payment info and complete payment.
Some people still think they have to create an account to pay with Paypal ( No Longer True)
PayPal stores cookies on the users system and if someone with a PayPal account logged into it a user that never used PayPal will get a confusing payment screen.
Not the best choice as a primary payment method for high volume companies.

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Andrew W. Chang<br />President<br />Scorpion Systems<br />Winner PayPal® Star Developer Award 2005<br />AndrewC@scorpionsystems.net<br />Secure Web Hosting, Web Development &amp; Programming