PayPal Payment

Hi, Presently, im using paypal as a payment system for almost all my websites. But when somebody buy one of my product, he has to go one the paypal page to enter his information and do the payment and after that he is redirected to my webpage. Im doing this bid because I want to accept payment directly on my website using the PayPal API. I think i will need an SSL certificate or something like that. By accepting this bid, you will have to setup the payment system on my website. To be more clear....im already using paypal.? What i want is that the user will be able to do the payment directly from my website using the PayPal direct payment API. I want a page that will look like this page: <[login to view URL]> Maybe its not possible with PayPal.? If you want to use another payment system, please let me know wich one before accepting the bid. Best Regards,