I want to resize an existing calendar event from JavaScript. The resize will be triggered by the user selecting the new start or end time from a pair of dropdown boxes. I already have a JS method that handles this event from the calendar, but I want to be able to call that function myself. My problem is how to instantiate and populate a DayPilotCalendar.Event object on the client side, as the start and end properties are only exposed as getter methods.

So I think what I'm looking for is something like this:
var e = new DayPilotCalendar.Event();
e.setStart(oldStartDate);
e.setEnd(oldEndDate);
rangeResized(e, newStartDate, newEndDate); // My existing resize event handling method, which invokes the CallBack functionality

Thanks,
Matt