From ade93ffc5ed1acdc9a9af880857481643115a784 Mon Sep 17 00:00:00 2001
From: Robert Hickman <robhobbes@gmail.com>
Date: Tue, 18 Jun 2013 15:19:09 -0600
Subject: [PATCH 1/2] Only disable the previous button if the navPrevNextWrap
 option is not set.

---
 src/viewer.js | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/src/viewer.js b/src/viewer.js
index 624431e4..97b430de 100644
--- a/src/viewer.js
+++ b/src/viewer.js
@@ -346,10 +346,6 @@ $.Viewer = function( options ) {
         beginControlsAutoHide( _this );
     } );    // initial fade out
 
-    if(this.navPrevNextWrap){
-        this.previousButton.enable();
-    }
-
 };
 
 $.extend( $.Viewer.prototype, $.EventHandler.prototype, $.ControlDock.prototype, {
@@ -855,7 +851,9 @@ $.extend( $.Viewer.prototype, $.EventHandler.prototype, $.ControlDock.prototype,
                 onBlur:     onBlurHandler
             });
 
-            this.previousButton.disable();
+            if( !this.navPrevNextWrap ){
+                this.previousButton.disable();
+            }
 
             if( useGroup ){
                 this.paging = new $.ButtonGroup({

From 91e4edafd010301737b001b9aea682c20bf9700d Mon Sep 17 00:00:00 2001
From: Ian Gilman <ian@iangilman.com>
Date: Wed, 19 Jun 2013 10:14:49 -0700
Subject: [PATCH 2/2] Updated changelog for #135

---
 changelog.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/changelog.txt b/changelog.txt
index 0e713a28..2e4d94a3 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -3,6 +3,8 @@ OPENSEADRAGON CHANGELOG
 
 0.9.129: (In Progress)
 
+* Fixed an error when using navPrevNextWrap on single images (#135)
+
 0.9.128:
 
 * The navigator is now off by default (#102)