[imp] Drag and drop

[c.bayerlein at bundesarchiv.de]

Hi Michael!


> The base dragdrop library used is dragdrop2.js, located at  
> horde/js/dragdrop2.js.  Then you will also need to look at  
> imp/js/dimpbase.js and imp/js/viewport.js to tweak how the dragdrop  
> code interacts with the actual layout of the IMP pages (doing a grep  
> for DragDrop is useful in these files).
Thank you very much, that's very helpful :)

Cheers
Chris