Login on pages returns you back to the store front

[wsme]

Hi,

I am working on a trade only site. When a customer goes to look at products, they are asked to log in to see the prices. However, when they log in, the site redirects them back to the store front. Is there a way for the site to return them back to the page they were looking at before they logged in?

To see what I mean, go to www.dynamic-cctv.com/shop/

Thanks,

Paul