Here you can fin a demo:

https://www.paypal.com/cgi-bin/webscr?cmd=p/dmo/demo_sm_1-outside

With PayPal, you can send money to anyone with an email address by simply signing up for a PayPal account. When you are logged into your account, click the Send Money tab. Then enter your recipient's email address and the amount you would like to send. With PayPal you can send payments in one of these currencies:
Euro
Pound Sterling
U.S. Dollar

To fund the payment, add a credit card to your PayPal account.
After reviewing the details of your payment, click the Send Money button. The payment will be sent directly to your recipient. Your recipient will immediately receive an email explaining that he has received a payment from you through PayPal.