applicable sections copied from _renderEvents to _updateEventsInCalendar

jquery weekcalendar update for multiday events

      /*
       * update the events rendering in the calendar. Add if does not yet exist.
       */
      _updateEventInCalendar : function (calEvent) {
         var self = this;
         self._cleanEvent(calEvent);

         if (calEvent.id) {
            self.element.find(".wc-cal-event").each(function() {
               if ($(this).data("calEvent").id === calEvent.id || $(this).hasClass("wc-new-cal-event")) {
                  $(this).remove();
               }
            });
         }

              var initialStart = new Date(calEvent.start);
              var initialEnd = new Date(calEvent.end);
              var maxHour = self.options.businessHours.limitDisplay ? self.options.businessHours.end : 24;
              var minHour = self.options.businessHours.limitDisplay ? self.options.businessHours.start : 0;
              var start = new Date(initialStart);
              var endDay = initialEnd.getDay();
              var $weekDays;

              while( start.getDay() < endDay ){
                calEvent.start = start;
                //end of this virual calEvent is set to the end of the day 
                calEvent.end.setFullYear(start.getFullYear());
                calEvent.end.setMonth(start.getMonth());
                calEvent.end.setDate(start.getDate());
                calEvent.end.setHours(maxHour);
                calEvent.end.setMinutes(0);
                calEvent.end.setSeconds(0);
                if ( ($weekDays = self._findWeekDayForEvent(calEvent, self.element.find(".wc-grid-row-events .wc-day-column-inner"))) ) {

                   $weekDays.each(function(index, weekDay){
                     var $weekDay = $(weekDay);
                     var $calEvent = self._renderEvent(calEvent, $weekDay);
                     self._adjustForEventCollisions($weekDay, $calEvent, calEvent, calEvent);
                     self._refreshEventDetails(calEvent, $calEvent);
                     self._positionEvent($weekDay, $calEvent);
                     self._adjustOverlappingEvents($weekDay);
                   });
                }
                //start is set to the begin of the new day
                start.setDate( start.getDate() + 1 );
                start.setHours( minHour );
                start.setMinutes( 0 );
                start.setSeconds( 0 );
              }
              if ( start < initialEnd ) {
                calEvent.start = start;
                calEvent.end = initialEnd;
                if ( ($weekDays = self._findWeekDayForEvent(calEvent, self.element.find(".wc-grid-row-events .wc-day-column-inner"))) ) {

                   $weekDays.each(function(index, weekDay){
                     var $weekDay = $(weekDay);
                     var $calEvent = self._renderEvent(calEvent, $weekDay);
                     self._adjustForEventCollisions($weekDay, $calEvent, calEvent, calEvent);
                     self._refreshEventDetails(calEvent, $calEvent);
                     self._positionEvent($weekDay, $calEvent);
                     self._adjustOverlappingEvents($weekDay);
                   });

                }
              }
              calEvent.start = initialStart;
      },
      _updateEventInCalendarORIGINAL : function (calEvent) {
         var self = this;
         self._cleanEvent(calEvent);

         if (calEvent.id) {
            self.element.find(".wc-cal-event").each(function() {
               if ($(this).data("calEvent").id === calEvent.id || $(this).hasClass("wc-new-cal-event")) {
                  $(this).remove();
             //     return false; //not my comment
               }
            });
         }

         var $weekDays = self._findWeekDayForEvent(calEvent, self.element.find(".wc-grid-row-events .wc-day-column-inner"));
         if ($weekDays) {
           $weekDays.each(function(index, weekDay){
             var $weekDay = $(weekDay);
             var $calEvent = self._renderEvent(calEvent, $weekDay);
             self._adjustForEventCollisions($weekDay, $calEvent, calEvent, calEvent);
             self._refreshEventDetails(calEvent, $calEvent);
             self._positionEvent($weekDay, $calEvent);
             self._adjustOverlappingEvents($weekDay);
           });
         }
      },