rem: this.removeItemFromTree(aOldItem); this.addItemToTree(aNewItem); 
add: if (aOldItem instanceof Components.interfaces.calIEvent) { this.removeItemFromTree(aOldItem); } if (aNewItem instanceof Components.interfaces.calIEvent) { this.addItemToTree(aNewItem); } 
context:     onModifyItem: function(aNewItem, aOldItem) {        if (!(aNewItem instanceof Components.interfaces.calIEvent) ||            this.mInBatch) {            return;        }        this.removeItemFromTree(aOldItem);        this.addItemToTree(aNewItem);    },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/94eb641d3084e388a697c5e52f2becae87597721/unifinder.js/clean/calendar/resources/content/unifinder.js