No need payment method in the vendor site

[arul_css]

I am using VirtueMart 1.1.9 stable and Joomla Version 1.5.20

In payment method i am using PayPal (new API), after entering the customer address information, the customer should not enter the credit card details in the vendor site, it should redirect to PayPal site. Customers may pay by their credit card or using PayPal account.

I need solutions for the above

Please give link, if there is any document related to my post.