That's not what you call withdraw from cc owners to website owners. It's what you call payment. People can access the webpage, the webpage can be authorized by Credit Cards authorities to process the credit cards with banks, or they need to find a payment gateway as their middle man ( like paypal, plimus, 2co, alertpay, MB). These will first check if the CC is valid by charge them a few bucks to their account and reverse instantly. 2nd, after the checking is true, they will charge their customer credit card the amount desired. These are the basic.
lol thats not how you do it. there are two things either you authorize ur sale a credit card. if you authorize it then paypal authorizes the credit card for the amount and you can change authorisation to sale within i think 10/15 days or something. if you sale the credit card the money is transferred immidiately to your paypal account. and its same with all banks or website who offer these services