add: if( evt.target.getAttribute( "day" ) != gDayIndex ) return false; 
context:   onDragOver: function (evt,flavour,session){      dump( "\nDragged Over" );      evt.target.setAttribute( "draggedover", "true" );      },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/17499b9e4bdabb3c7956df7316a8ca614ff54603/calendarWeekView.js/clean/calendar/resources/content/calendarWeekView.js