Bit of code cleanup.

accessible_gmaps.js

@@ -366,23 +366,9 @@ function accessible_gmaps_addMarker(marker){
 	accessible_gmaps_markers.push(marker);
 }
 
-
-function accessible_gmaps_getMapData(){
-	mapData = {};
-	mapData.scale = Math.pow(2, accessibilityMap.getZoom());
-	mapData.nw = new google.maps.LatLng(
-		accessibilityMap.getBounds().getNorthEast().lat(),
-		accessibilityMap.getBounds().getSouthWest().lng()
-	);
-	mapData.projection = accessibilityMap.getProjection();
-	mapData.worldCoordinateNW = mapData.projection.fromLatLngToPoint(mapData.nw);
-	
-	return mapData;
-}
-
 /**
  *	Helper function to calculate the position of a marker overlay.
- *	Written by Keith and almost entirely unmodified.
+ *	Written by Keith and modified for performance.
  */
 function accessible_gmaps_getMarkerPos(marker, mapData) {
 	var gmap = marker.map;
@@ -395,4 +381,22 @@ function accessible_gmaps_getMarkerPos(marker, mapData) {
 	);
 
 	return pixelOffset;
+}
+
+/**
+ *	Helper function to pull projection information from map.
+ *	This info is needed in accessible_gmaps_getMarkerPos(),
+ *	but can be calculated once for every batch of marker resets.
+ */
+function accessible_gmaps_getMapData(){
+	mapData = {};
+	mapData.scale = Math.pow(2, accessibilityMap.getZoom());
+	mapData.nw = new google.maps.LatLng(
+		accessibilityMap.getBounds().getNorthEast().lat(),
+		accessibilityMap.getBounds().getSouthWest().lng()
+	);
+	mapData.projection = accessibilityMap.getProjection();
+	mapData.worldCoordinateNW = mapData.projection.fromLatLngToPoint(mapData.nw);
+	
+	return mapData;
 }
\ No newline at end of file