See this fiddle: http://jsfiddle.net/KbNxf/
Basically, if I create two equivalent duration objects, one with years/months/days and the other with just days, the second's days() method returns a value…
The hotkey combination to convert to XP mode is "Ctrl" & "X"... which is also the combination used in Windows to cut & paste text. This is inconvenient, as a user may accidentally hit Ctrl-X trying to…