right/left arrow keys functional on photo#show

app/views/photos/show.html.haml

@@ -8,9 +8,9 @@
 .span-15.append-1.last
   #photo_controls
     .right
-      =link_to "← #{t('previous')}", @prev_photo, :rel => 'prefetch'
+      =link_to "← #{t('previous')}", @prev_photo, :rel => 'prefetch', :id => 'photo_show_left'
       \/
-      =link_to "#{t('next')} →", @next_photo, :rel => 'prefetch'
+      =link_to "#{t('next')} →", @next_photo, :rel => 'prefetch',  :id => 'photo_show_right'
 
     - if @photo.status_message_id
       =link_to "← #{t('.view_original_post')}", @photo.status_message

public/javascripts/photo-show.js

@@ -58,4 +58,17 @@ $(document).ready( function(){
     });
   });
 
+  // right/left hotkeys
+  $(document).keyup(function(e){
+    //left
+    if(e.keyCode == 37) {
+      document.location = $("#photo_show_left").attr('href');
+
+    //right
+    } else if(e.keyCode == 39) {
+      document.location = $("#photo_show_right").attr('href');
+
+    }
+  });
+
 });

public/stylesheets/sass/application.sass

@@ -302,8 +302,6 @@ li.message
   :color #777
 
   .from
-    :margin
-      :bottom 5px
     h4
       :display inline
       a