code: function() {
  		if (!this.elLat) return {};
  		return {
  			lat : parseFloat(this.elLat.value),
  			lon : parseFloat(this.elLon.value),
  			uzoom : parseInt(this.elUZoom.value),
  			nzoom : parseInt(this.elNZoom.value)
  		};
  	}
docs: return the same structure as setValue