i have searched (and searched and searched, pehpas im using the wrong keywords) but i am struggling to see if there is a module which will show a pop up on screen (after user has added clicked to add a product to their cart) with two options - to continue shopping or go to checkout, both with appropriate links for the option selected by the user.

i would prefer a free version (of course ) but i dont mind using a paid module if there is such thing, or even if anyone can offer some guidance on how to go about doing this myself.... any advise would be much appreciated, thankyou