Ajax is great for sending data back and forth between a browser window and the server, but when it comes to communication between two browser windows, there are few libraries that can help you out there.
I’ve been working with jQuery for over a year now and have always wanted to give something back to the user community by releasing my own plugin. Unfortunately it seemed like every type of generic functionality I might ever need had already been developed by others. Until last night.
I was working on a webapp in which my main browser window had to open a popup window, and the user would then perform an action in this window. Upon completion of that action the main (parent) browser window needed to be notified.