pass in back button event from handler

This is so that the onClickButtonPrev method we eventually pass to
requires an event so without having this we were breaking this and
causing the back button to do nothing.

Fixes #68.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/js/router.js b/src/js/router.js
index 3f5a9b2..118955e 100644
--- a/src/js/router.js
+++ b/src/js/router.js
@@ -36,9 +36,9 @@
                 }
             },
 
-            back: function() {
+            back: function(e) {
                 if (this.currentView && this.currentView.prev) {
-                    this.currentView.onClickButtonPrev();
+                    this.currentView.onClickButtonPrev(e);
                 }
             },