Imitating Facebook Bottom Toolbar with a few lines of CSS and a couple of JS lines

I've been working on a project that's built on Elgg Social Networking engine. An Open-Source software. This project required us a Chat plugin that could be used by its members for private conversations. Good thing we found this Elggchat module from Elgg community which surely had saved us some time. And that's it. The only thing left for us to do was to modify it a bit to fit into our application. Of course we had to upgrade it's look-and-feel and tweak a little further.