Dragable Layers with Javascript

yeah, my ones just basic principles of using window events to track mouse positions and using the document object model to manipulate a styles settings.

The one you provided a link for is quite slow because of the transparency effect, and it uses a block of text as the click point for dragging whereas I just left it as the entire layer.

I was thinking about writing a windows emulator script so you can have layers that move, snap, close, minimize, maximise etc. 
Don't know how much use it would be to people tho.