rem: var zoomChanged = false; if (zoom != null) { if (this.zoom && zoom != this.zoom) zoomChanged = true; 
add: var zoomChanged = null; if (zoom != null && zoom != this.zoom && zoom >= 0 && zoom <= this.getZoomLevels()) { zoomChanged = (this.zoom == null ? 0 : this.zoom); 
context:     setCenter: function (latlon, zoom) {        if (this.center) { // otherwise there's nothing to move yet            this.moveLayerContainer(latlon);        }        this.center = latlon.copyOf();        var zoomChanged = false;        if (zoom != null) {            if (this.zoom && zoom != this.zoom)                zoomChanged = true;            this.zoom = zoom;        }        this.events.triggerEvent("movestart");        this.moveToNewExtent(zoomChanged);        this.events.triggerEvent("moveend");    },
meta: 4411	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/4411/170b83a12522cf46d1c989f8c1394f9ac6018399/Map.js/clean/lib/OpenLayers/Map.js