| $drag | called when drag-n-drop has started and defines a dragging behavior |
| $dragIn | called when mouse was moved in drop area and defines marker behavior within the drop area |
| $dragOut | called when the mouse pointer has been moved out of the drop area |
| $dragPos | defines the position of a dragged item |
| $drop | called when mouse was released over drop area and defines dropping behavior |
| left | position of drag marker relative to mouse cursor |
| top | position of drag marker relative to cursor |