Remove continue shopping screen and just leave view cart side box

Hi all,
I am zenning my site, and i wanted to remove the screen which comes after clicking add to cart (The screen gives options i.e. continue shopping, check out etc.) I mean to say i always need continious shopping, the customer should be able to see the cart in a sidebox, and after adding all his/her required items to cart, he should say checkout once.

Thanks

Admin-Configuration-My Store-Display Cart after adding product

Thanks a lot sir

But the problem now is i dont get Add to cart button on my Product view, instead it shows Contact us

Admin> Configuration> My Store> Store Mode

Thanks very much again.... Superb