Warning:This code and post is extensively commented and very descriptive. It’s geared towards newer JS programmers to help them grasp the concepts.
If you know what you’re doing just Download Drag / Drop / Resize Source
An implementation can be found at http://olarchitect.com and the source is available at
http://olarchitect.com/scripts/dragdrop.js
There are many ways to create moveable, resizable, [...]
