From 9a1d9a738840b4c9eaad82ad96259abb83da95b6 Mon Sep 17 00:00:00 2001
From: Ian Gulliver <ian@isinglasstheater.org>
Date: Wed, 23 Apr 2014 11:34:51 -0700
Subject: [PATCH] No idea why this is broken.

---
 cameragrid.js | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/cameragrid.js b/cameragrid.js
index 13245a2..4ad095a 100644
--- a/cameragrid.js
+++ b/cameragrid.js
@@ -15,9 +15,20 @@ limitations under the License.
 */
 var cameraGrid = {};
 
+/**
+ * @callback getUrl
+ * @param {String} sourceUrl Base URL of the camera
+ * @param {number} width Valid resolution width in pixels
+ * @param {number} height Valid resolution height in pixels
+ */
+
 /**
  * @constructor
  * @export
+ * @param {Node} container DOM container object to hold UI
+ * @param {String[]} sourceUrls Array of Axis camera URLs
+ * @param {number[][]=} resolutions Array of [width,height] resolution tuples
+ * @param {getUrl=} getUrl Callback to generate URL for a given camera
  */
 cameraGrid.CameraGrid = function(container, sourceUrls, resolutions, getUrl) {
   this.container_ = container;
@@ -87,7 +98,7 @@ cameraGrid.CameraGrid.prototype.setSelectedNoScan_ = function(index) {
 };
 
 cameraGrid.CameraGrid.prototype.setSelected_ = function(index) {
-  var old_index;
+  var old_index = null;
 
   if (this.selected_ == index) {
     this.removeCSSClass_(this.cells_[this.selected_], 'cameraGridFullScreen');