I have a checkout process that lets users add items to cart, and they are able to go through the first step of the checkout before logging in. Once it gets to the part where they have to log in, I'd like to use a popup div for this rather than redirecting them to a login page so it doesn't feel like they're leaving the checkout process.
I'm not sure what the best way to implement this is though. In a perfect world, there would be a way to integrate this idea with the existing asp.net forms authentication and it would popup the div over the page you're already on before redirecting to the protected page. I don't 'think' that's possible though so wondering how else could I do this?