From 8807a0c3a20f87e0bb3a031637180a855abda44a Mon Sep 17 00:00:00 2001
From: danzel <danzel@localhost.geek.nz>
Date: Fri, 21 Jun 2013 15:15:01 +1200
Subject: [PATCH] White space formatting and make sure we don't hit null if the
 parent isn't visible.

---
 src/MarkerClusterGroup.js | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/src/MarkerClusterGroup.js b/src/MarkerClusterGroup.js
index fa30630d3..d2b2683cf 100644
--- a/src/MarkerClusterGroup.js
+++ b/src/MarkerClusterGroup.js
@@ -390,14 +390,13 @@ L.MarkerClusterGroup = L.FeatureGroup.extend({
 		this._map = null;
 	},
 
-   getVisibleParent: function(marker){
-      var vMarker = marker;
-      // TODO: Is this safe? No extra check needed to prevent infinite loop?
-      while(!vMarker._icon) {
-         vMarker = vMarker.__parent;
-      }
-      return vMarker;
-   },
+	getVisibleParent: function(marker){
+		var vMarker = marker;
+		while(vMarker !== null && !vMarker._icon) {
+			vMarker = vMarker.__parent;
+		}
+		return vMarker;
+	},
 
 	//Remove the given object from the given array
 	_arraySplice: function (anArray, obj) {