Paypal button

Is there a reason why once the user clicks confirm in the reservation system, the payment button shows underneath, but the page doesn't direct to it? I mean, basically the button is not readily on screen, and you have to actually scroll down to discover there's the payment button. It's even less obvious in Mac OS browser, since the scroll bar is hidden most of the time. People won't realize that there is a payment button, since the page doesn't scroll down automatically to show the payment button. Is there a way to resolve this? Thanks!