o Added methods to hide/show individual tilesource layers

@@ -242,6 +242,9 @@ typedef enum {
 
 - (void)moveTileSourceAtIndex:(NSUInteger)fromIndex toIndex:(NSUInteger)toIndex;
 
+- (void)setHidden:(BOOL)isHidden forTileSource:(id <RMTileSource>)tileSource;
+- (void)setHidden:(BOOL)isHidden forTileSourceAtIndex:(NSUInteger)index;
+
 #pragma mark - Cache
 
 ///  Clear all images from the #tileSource's caching system.

@@ -1479,6 +1479,30 @@
     [self setCenterProjectedPoint:centerPoint animated:NO];
 }
 
+- (void)setHidden:(BOOL)isHidden forTileSource:(id <RMTileSource>)tileSource
+{
+    NSArray *tileSources = [self tileSources];
+
+    for (NSUInteger i=0; i<[tileSources count]; ++i)
+    {
+        id <RMTileSource> currentTileSource = [tileSources objectAtIndex:i];
+
+        if (tileSource == currentTileSource)
+        {
+            [self setHidden:isHidden forTileSourceAtIndex:i];
+            break;
+        }
+    }
+}
+
+- (void)setHidden:(BOOL)isHidden forTileSourceAtIndex:(NSUInteger)index
+{
+    if (index >= [_tiledLayersSuperview.subviews count])
+        return;
+
+    ((RMMapTiledLayerView *)[_tiledLayersSuperview.subviews objectAtIndex:index]).hidden = isHidden;
+}
+
 #pragma mark - Properties
 
 - (UIView *)backgroundView

@@ -9,6 +9,7 @@
 #import "MainView.h"
 
 #import "RMOpenStreetMapSource.h"
+#import "RMOpenSeaMapLayer.h"
 #import "RMMapView.h"
 #import "RMMarker.h"
 #import "RMCircle.h"
@@ -111,6 +112,22 @@
 
 	[self updateInfo];
 	[self performSelector:@selector(addMarkers) withObject:nil afterDelay:0.5];
+
+//    double delayInSeconds = 5.0;
+//    dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
+//    dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
+//        [mapView addTileSource:[[[RMOpenSeaMapLayer alloc] init] autorelease]];
+//
+//        dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
+//        dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
+//            [mapView setHidden:YES forTileSourceAtIndex:1];
+//
+//            dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC);
+//            dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
+//                [mapView setHidden:NO forTileSourceAtIndex:1];
+//            });
+//        });
+//    });
 }
 
 - (void)didReceiveMemoryWarning