Credit Card payment without leaving my web store

[eluser]pedsa[/eluser]
I'm need to develop an e-commerce solution (web store) where the payment is made through Credit Card transaction. But the client doesn’t want to redirect to other page to perform the payment (like in the PayPal). In short words, the client want to ask for the Credit Card number directly in order to keep the payment process very simple. I’ve already explained the drawbacks of this approach but client only want this. To develop this feature I need payment suppliers that provide this type of service (payments without leaving my web store), any suggestions?

Thanks